Fix 656 lazy temporal answers: replace 'static historical fact' with source-attributed answers

- Updated perspective.md: require source citations in temporal answers
- Filed feature request #75 for BCE temporal tag support (tested 7 formats, all rejected)
- Built batch script to replace all 'Static historical fact' answers with proper
  source attribution (ancient text date + modern publication year)
- Fixed source date detection bug (modern books about ancient figures)
- Answers now cite attesting source and its date per document footnotes

battles/battle-of-actium.md

@@ -21,7 +21,7 @@ The Battle of Actium (31 BCE) was the decisive naval engagement in which Octavia
 
 ## Aftermath
 - Antony and Cleopatra committed suicide in Alexandria (30 BCE)
-- Egypt became a Roman province
+- Egypt became a Roman province (30 BCE)
 - Octavian became sole ruler; Senate granted him the title Augustus (27 BCE) [^2]
 
 ---
@@ -33,29 +33,29 @@ The Battle of Actium (31 BCE) was the decisive naval engagement in which Octavia
 
 <!-- factbase:review -->
 - [x] `@q[temporal]` Line 10: "Date: 2 September 31 BCE" - when was this true?
-> Static historical fact. The battle occurred on 2 September 31 BCE. No temporal tag needed — this is a fixed event date already stated in the text.
+> BCE event. Attested by Plutarch, *Life of Antony* (~75 CE) [^1]; modern scholarly confirmation in Lange (2022) [^2].
 - [x] `@q[temporal]` Line 11: "Location: Ionian Sea, near Actium (western Greece)" - when was this true?
-> Static historical fact. The battle location is a fixed geographical/historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Plutarch, *Life of Antony* (~75 CE) [^1]; confirmed in Lange (2022) [^2].
 - [x] `@q[temporal]` Line 12: "Belligerents: Octavian vs. Mark Antony and Cleopatra VII" - when was this true?
-> Static historical fact. The belligerents at Actium are fixed. No temporal tag needed.
+> BCE-era fact. Attested by Plutarch, *Life of Antony* (~75 CE) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Agrippa (for Octavian), Antony and Cleopatra" - when was this true?
-> Static historical fact. The commanders at Actium are fixed. No temporal tag needed.
+> BCE-era fact. Attested by Plutarch, *Life of Antony* (~75 CE) [^1]. Agrippa's role confirmed in Cassius Dio, *Roman History* 50 (~229 CE).
 - [x] `@q[temporal]` Line 14: "Result: Decisive victory for Octavian [^1]" - when was this true?
-> Static historical fact. The battle result is fixed. No temporal tag needed.
+> BCE-era fact. Attested by Plutarch, *Life of Antony* (~75 CE) [^1]; modern analysis in Lange (2022) [^2].
 - [x] `@q[temporal]` Line 17: "Octavian's fleet: ~400 ships; Antony's fleet: ~230 warships + 60 Egyptian ships" - when was this true?
-> Static historical fact. Fleet sizes at the battle are fixed estimates. No temporal tag needed. Source: Plutarch, Life of Antony; Lange (2022).
+> BCE-era fact. Fleet estimates from Plutarch, *Life of Antony* (~75 CE) [^1]; modern analysis in Lange (2022) [^2]. Ancient estimates vary by source.
 - [x] `@q[temporal]` Line 18: "Antony's forces were weakened by desertion and disease during a prolonged blo..." - when was this true?
-> Static historical fact. Events during the 31 BCE campaign. No temporal tag needed.
+> BCE event (31 BCE campaign). Attested by Plutarch, *Life of Antony* (~75 CE) [^1]; Cassius Dio, *Roman History* 50 (~229 CE).
 - [x] `@q[temporal]` Line 19: "Cleopatra's squadron broke through and fled; Antony followed" - when was this true?
-> Static historical fact. Event during the battle of 2 September 31 BCE. No temporal tag needed.
+> BCE event (2 September 31 BCE). Attested by Plutarch, *Life of Antony* 66 (~75 CE) [^1].
 - [x] `@q[temporal]` Line 20: "Remaining fleet surrendered; Antony's legions defected to Octavian" - when was this true?
-> Static historical fact. Event during/after the battle of 31 BCE. No temporal tag needed.
+> BCE event (31 BCE). Attested by Plutarch, *Life of Antony* (~75 CE) [^1]; Cassius Dio, *Roman History* 51 (~229 CE).
 - [x] `@q[temporal]` Line 23: "Antony and Cleopatra committed suicide in Alexandria (30 BCE)" - when was this true?
-> Static historical fact. Occurred 30 BCE. No temporal tag needed — date is already in the text.
+> BCE event (30 BCE). Attested by Plutarch, *Life of Antony* 76-86 (~75 CE) [^1].
 - [x] `@q[temporal]` Line 24: "Egypt became a Roman province" - when was this true?
-> Static historical fact. Egypt became a Roman province in 30 BCE after the deaths of Antony and Cleopatra. Add '(30 BCE)' to the text for clarity.
+> BCE event (30 BCE). Attested by Cassius Dio, *Roman History* 51.17 (~229 CE); confirmed in Lange (2022) [^2].
 - [x] `@q[temporal]` Line 25: "Octavian became sole ruler; Senate granted him the title Augustus (27 BCE) [^2]" - when was this true?
-> Static historical fact. Occurred 27 BCE, already stated in the text. No temporal tag needed.
+> BCE event (27 BCE). Attested by multiple ancient sources including Cassius Dio (~229 CE); modern confirmation in Lange (2022) [^2].
 - [x] `@q[missing]` Line 10: "Date: 2 September 31 BCE" - what is the source?
 > Source: Plutarch, Life of Antony; Cassius Dio, Roman History 50-51. The date is well-established in classical sources. Already cited via [^1] (Plutarch) and [^2] (Lange 2022).
 - [x] `@q[missing]` Line 11: "Location: Ionian Sea, near Actium (western Greece)" - what is the source?

battles/battle-of-adrianople.md

@@ -34,25 +34,25 @@ The Battle of Adrianople (378 CE) was a catastrophic Roman defeat in which the V
 - [x] `@q[missing]` Line 10: "Date: 9 August 378 CE @t[=0378]" - what is the source?
 > Well-established historical date from Ammianus Marcellinus, Res Gestae (Book 31), the primary contemporary source for the battle. Also corroborated by later sources including Orosius and Zosimus.
 - [x] `@q[temporal]` Line 11: "Location: Adrianople (modern Edirne, Turkey)" - when was this true?
-> Static historical fact. Battle occurred 9 August 378 CE. No temporal tag needed.
+> CE event (378 CE), tagged @t[=0378] on the date line. Attested by Ammianus Marcellinus, *Res Gestae* 31.12 (~390 CE) [^1]; modern confirmation in Burns (1994) [^2].
 - [x] `@q[temporal]` Line 12: "Belligerents: Eastern Roman Empire vs. Visigoths" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (378 CE), no additional temporal tag needed beyond the date line. Attested by Ammianus Marcellinus, *Res Gestae* 31.12 (~390 CE) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Emperor Valens (Rome, killed), Fritigern (Visigoths)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (378 CE). Attested by Ammianus Marcellinus, *Res Gestae* 31.12-13 (~390 CE) [^1].
 - [x] `@q[temporal]` Line 14: "Result: Decisive Visigothic victory [^1]" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (9 August 378 CE). Attested by Ammianus Marcellinus, *Res Gestae* 31.13 (~390 CE) [^1]; modern analysis in Burns (1994) [^2].
 - [x] `@q[temporal]` Line 17: "Valens attacked without waiting for Western reinforcements under Gratian" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (9 August 378 CE). Attested by Ammianus Marcellinus, *Res Gestae* 31.12.4-6 (~390 CE) [^1].
 - [x] `@q[temporal]` Line 18: "Roman cavalry was routed by a surprise Gothic cavalry charge" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (9 August 378 CE). Attested by Ammianus Marcellinus, *Res Gestae* 31.13.2 (~390 CE) [^1].
 - [x] `@q[temporal]` Line 19: "Roman infantry was surrounded and annihilated" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (9 August 378 CE). Attested by Ammianus Marcellinus, *Res Gestae* 31.13.6-8 (~390 CE) [^1].
 - [x] `@q[temporal]` Line 20: "~20,000 Roman soldiers killed, including Valens himself" - when was this true?
-> Static historical fact. No temporal tag needed.
+> CE event (9 August 378 CE). Casualty figure is a modern estimate; Ammianus (~390 CE) says two-thirds of the army was lost [^1]. Burns (1994) [^2] provides the ~20,000 figure.
 - [x] `@q[temporal]` Line 23: "Demonstrated the vulnerability of Roman legions to heavy cavalry" - when was this true?
-> Static historical fact / scholarly interpretation. No temporal tag needed.
+> Scholarly interpretation, not a dated event. Assessment in Burns (1994) [^2]; also Delbrück, *History of the Art of War*. Some modern historians debate the cavalry emphasis.
 - [x] `@q[temporal]` Line 25: "Often considered a harbinger of the fall of the Western Roman Empire [^2]" - when was this true?
-> Static historical interpretation. No temporal tag needed.
+> Scholarly interpretation. Assessment in Burns (1994) [^2]; also supported by Heather, *The Fall of the Roman Empire* (2006) and Lenski (2002).
 - [x] `@q[temporal]` Line 7: Malformed temporal tag @t[=378] — see docs for valid syntax
 > Fix to @t[=0378]. The temporal tag system requires 4-digit years.
 - [x] `@q[temporal]` Line 10: Malformed temporal tag @t[=378] — see docs for valid syntax

battles/battle-of-gaugamela.md

@@ -34,31 +34,31 @@ The Battle of Gaugamela (331 BCE) was the decisive battle in which Alexander the
 
 <!-- factbase:review -->
 - [x] `@q[temporal]` Line 10: "Date: 1 October 331 BCE" - when was this true?
-> Static historical fact. Battle occurred 1 October 331 BCE. No temporal tag needed.
+> BCE event. Attested by Arrian, *Anabasis of Alexander* 3.8 (~130 CE) [^1]; Plutarch, *Life of Alexander*. Modern confirmation: Heckel (2008) [^2].
 - [x] `@q[temporal]` Line 11: "Location: Gaugamela (near modern Erbil, Iraq)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Arrian, *Anabasis* 3.8 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 12: "Belligerents: Macedon vs. Persian Empire" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Arrian, *Anabasis* 3.8 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Alexander the Great vs. Darius III" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Arrian, *Anabasis* 3.8 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 14: "Result: Decisive Macedonian victory [^1]" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Arrian, *Anabasis* 3.15 (~130 CE) [^1]; modern analysis in Heckel (2008) [^2].
 - [x] `@q[temporal]` Line 17: "Alexander: ~47,000 troops; Darius: ~50,000–100,000 (ancient sources claim u..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Troop estimates from Arrian, *Anabasis* 3.8 (~130 CE) [^1]; modern range analysis in Heckel (2008) [^2]. Ancient estimates vary widely.
 - [x] `@q[temporal]` Line 18: "Darius prepared the battlefield with scythed chariots and leveled ground for ..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (331 BCE). Attested by Arrian, *Anabasis* 3.11 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 19: "Alexander used an oblique advance, drawing the Persian line apart" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (1 October 331 BCE). Attested by Arrian, *Anabasis* 3.13-14 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 20: "Led a cavalry charge through a gap directly at Darius, who fled" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (1 October 331 BCE). Attested by Arrian, *Anabasis* 3.14 (~130 CE) [^1]; Plutarch, *Life of Alexander* 33 (~75 CE).
 - [x] `@q[temporal]` Line 21: "Persian army collapsed after Darius' flight" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (1 October 331 BCE). Attested by Arrian, *Anabasis* 3.15 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 24: "Alexander captured Babylon, Susa, and Persepolis" - when was this true?
-> Static historical fact. Occurred 331-330 BCE. No temporal tag needed.
+> BCE events (331-330 BCE). Attested by Arrian, *Anabasis* 3.16-18 (~130 CE) [^1].
 - [x] `@q[temporal]` Line 25: "Darius III was later murdered by his own satrap Bessus (330 BCE)" - when was this true?
-> Static historical fact. Occurred 330 BCE, already stated. No temporal tag needed.
+> BCE event (330 BCE). Attested by Arrian, *Anabasis* 3.21 (~130 CE) [^1]; Curtius Rufus 5.12-13 (~1st century CE).
 - [x] `@q[temporal]` Line 26: "Marked the end of the Achaemenid dynasty after ~220 years [^2]" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Modern scholarly assessment in Heckel, *The Conquests of Alexander the Great* (Cambridge, 2008) [^2].
 - [x] `@q[missing]` Line 10: "Date: 1 October 331 BCE" - what is the source?
 > Source: Arrian, Anabasis of Alexander 3.8-15 [^1]; Plutarch, Life of Alexander.
 - [x] `@q[missing]` Line 11: "Location: Gaugamela (near modern Erbil, Iraq)" - what is the source?

battles/battle-of-kadesh.md

@@ -33,29 +33,29 @@ The Battle of Kadesh (~1274 BCE) was fought between the Egyptian Empire under Ra
 
 <!-- factbase:review -->
 - [x] `@q[temporal]` Line 10: "Date: ~1274 BCE" - when was this true?
-> Static historical fact. Battle occurred ~1274 BCE. No temporal tag needed.
+> BCE event. Date from Egyptian records at Karnak and Abu Simbel; modern analysis in Spalinger, *War in Ancient Egypt* (2005) [^1] and Kitchen, *Pharaoh Triumphant* (1982) [^2].
 - [x] `@q[temporal]` Line 11: "Location: Kadesh, on the Orontes River (modern Tell Nebi Mend, Syria)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Egyptian Bulletin of Kadesh and Hittite records from Hattusa; confirmed in Spalinger (2005) [^1] and Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 12: "Belligerents: Egypt vs. Hittite Empire" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by both Egyptian and Hittite records; confirmed in Spalinger (2005) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Ramesses II (Egypt), Muwatalli II (Hittites)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Attested by Egyptian records and Hittite records from Hattusa; confirmed in Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 14: "Result: Tactically indecisive; both sides claimed victory [^1]" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Both sides' victory claims attested in their own records. Modern assessment of indecisive outcome in Spalinger (2005) [^1].
 - [x] `@q[temporal]` Line 17: "Largest chariot battle in history (~5,000–6,000 chariots total)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact. Chariot estimates from Egyptian and Hittite records; modern analysis in Spalinger (2005) [^1].
 - [x] `@q[temporal]` Line 18: "Ramesses was ambushed after receiving false intelligence from Hittite spies" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (~1274 BCE). Attested by the Egyptian Bulletin of Kadesh; confirmed in Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 19: "Egyptian camp nearly overrun before reinforcements arrived" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (~1274 BCE). Attested by the Egyptian Bulletin of Kadesh; confirmed in Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 20: "Ramesses personally led a counterattack" - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE event (~1274 BCE). Attested by the Egyptian Poem of Kadesh; confirmed in Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 23: "Led to the Treaty of Kadesh (~1259 BCE), the earliest known international pea..." - when was this true?
-> Static historical fact. Treaty date already in text. No temporal tag needed.
+> BCE-era fact. Treaty text preserved in both Egyptian (Karnak) and Hittite (Hattusa) copies; modern analysis in Beckman, *Hittite Diplomatic Texts* (1999) and Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 24: "Egypt retained influence in Canaan; Hittites kept Syria" - when was this true?
-> Static historical fact. Post-battle territorial arrangement. No temporal tag needed.
+> BCE-era fact (post-treaty arrangement, ~1259 BCE onward). Attested by treaty terms; confirmed in Spalinger (2005) [^1] and Kitchen (1982) [^2].
 - [x] `@q[temporal]` Line 25: "Ramesses commissioned extensive propaganda reliefs at Abu Simbel, Karnak, and..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> BCE-era fact (during Ramesses II's reign, ~1274-1213 BCE). The reliefs themselves are the primary source; scholarly analysis in Kitchen (1982) [^2].
 - [x] `@q[missing]` Line 10: "Date: ~1274 BCE" - what is the source?
 > Source: Spalinger (2005) [^1]; Kitchen (1982) [^2]. Egyptian records at Karnak, Abu Simbel, and the Ramesseum.
 - [x] `@q[missing]` Line 11: "Location: Kadesh, on the Orontes River (modern Tell Nebi Mend, Syria)" - what is the source?

battles/battle-of-marathon.md

@@ -33,29 +33,29 @@ The Battle of Marathon (490 BCE) was a decisive Greek victory over the Persian E
 
 <!-- factbase:review -->
 - [x] `@q[temporal]` Line 10: "Date: September 490 BCE" - when was this true?
-> Static historical fact. September 490 BCE. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.102-117 (~430 BCE) [^1]; modern confirmation in Krentz (2010) [^2]. BCE temporal tags not yet supported by factbase.
 - [x] `@q[temporal]` Line 11: "Location: Plain of Marathon, ~40 km northeast of Athens" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.102 (~430 BCE) [^1]; confirmed in Krentz (2010) [^2].
 - [x] `@q[temporal]` Line 12: "Belligerents: Athens and Plataea vs. Persian Empire" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.108 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Miltiades (Athens), Datis and Artaphernes (Persia)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.103, 6.94 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 14: "Result: Decisive Greek victory [^1]" - when was this true?
-> Static historical fact. September 490 BCE. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.113-117 (~430 BCE) [^1]; modern analysis in Krentz (2010) [^2].
 - [x] `@q[temporal]` Line 17: "~10,000 Athenians and ~1,000 Plataeans vs. ~25,000 Persians (estimates vary)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Troop estimates from Herodotus, *Histories* 6.103-109 (~430 BCE) [^1]; modern range analysis in Krentz (2010) [^2]. Ancient and modern estimates vary.
 - [x] `@q[temporal]` Line 18: "Miltiades strengthened the flanks at the expense of the center" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.111 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 19: "Greek wings enveloped the Persian center in a double envelopment" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Attested by Herodotus, *Histories* 6.113 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 20: "Persian losses: ~6,400; Greek losses: ~192" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 490 BCE event. Casualty figures from Herodotus, *Histories* 6.117 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 23: "Pheidippides' legendary run from Marathon to Athens (~40 km) inspired the mod..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> The run tradition derives from later sources (Plutarch, ~75 CE; Lucian, ~2nd century CE). Herodotus describes Pheidippides' run to Sparta, not Athens. Modern marathon race established 1896 CE. Krentz (2010) [^2] discusses the tradition.
 - [x] `@q[temporal]` Line 24: "Athenian burial mound (*soros*) still visible at Marathon" - when was this true?
-> Static historical fact. No temporal tag needed.
+> The mound dates to ~490 BCE. Its continued visibility confirmed by Krentz (2010) [^2] and ongoing archaeological surveys at the Marathon site.
 - [x] `@q[temporal]` Line 25: "Boosted Athenian confidence and democratic identity" - when was this true?
-> Static historical fact. No temporal tag needed.
+> Scholarly interpretation of post-490 BCE Athenian culture. Attested by Herodotus, *Histories* (~430 BCE) [^1]; modern analysis in Krentz (2010) [^2].
 - [x] `@q[missing]` Line 10: "Date: September 490 BCE" - what is the source?
 > Herodotus Histories 6.102-117 [^1] and Krentz (2010) [^2].
 - [x] `@q[missing]` Line 11: "Location: Plain of Marathon, ~40 km northeast of Athens" - what is the source?

battles/battle-of-thermopylae.md

@@ -33,29 +33,29 @@ The Battle of Thermopylae (480 BCE) was a famous last stand by a Greek force led
 
 <!-- factbase:review -->
 - [x] `@q[temporal]` Line 10: "Date: August 480 BCE (three days)" - when was this true?
-> Static historical fact. August 480 BCE. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.201-233 (~430 BCE) [^1]; modern confirmation in Cartledge (2006) [^2]. BCE temporal tags not yet supported by factbase.
 - [x] `@q[temporal]` Line 11: "Location: Thermopylae pass ("Hot Gates"), central Greece" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.201 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 12: "Belligerents: Greek alliance vs. Persian Empire" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.202-203 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 13: "Commanders: Leonidas I (Sparta), Xerxes I (Persia)" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.204, 7.208 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 14: "Result: Persian victory, but costly delay [^1]" - when was this true?
-> Static historical fact. August 480 BCE. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.223-233 (~430 BCE) [^1]; modern analysis in Cartledge (2006) [^2].
 - [x] `@q[temporal]` Line 17: "~7,000 Greeks initially held the narrow pass against ~100,000–300,000 Persi..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Greek numbers from Herodotus, *Histories* 7.202-203 (~430 BCE) [^1]. Persian numbers debated; modern estimates in Cartledge (2006) [^2] range 100,000-300,000.
 - [x] `@q[temporal]` Line 18: "Greeks exploited the narrow terrain to negate Persian numerical advantage" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.211 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 19: "Betrayed by Ephialtes, who revealed a mountain path to outflank the Greeks" - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.213-214 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 20: "Leonidas dismissed most allies; ~300 Spartans, ~700 Thespians, and ~400 Theba..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE event. Attested by Herodotus, *Histories* 7.222 (~430 BCE) [^1].
 - [x] `@q[temporal]` Line 23: "Epitaph by Simonides: "Go tell the Spartans, stranger passing by, that here o..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> Epitaph composed shortly after 480 BCE by Simonides of Ceos. Attested by Herodotus, *Histories* 7.228 (~430 BCE) [^1]; discussed in Cartledge (2006) [^2].
 - [x] `@q[temporal]` Line 24: "Bought time for the Greek fleet at Artemisium and the subsequent victory at S..." - when was this true?
-> Static historical fact. No temporal tag needed.
+> 480 BCE events. Attested by Herodotus, *Histories* 8.1-96 (~430 BCE) [^1]; modern analysis in Cartledge (2006) [^2].
 - [x] `@q[temporal]` Line 25: "Became the archetypal story of sacrifice against overwhelming odds" - when was this true?
-> Static historical fact. No temporal tag needed.
+> Cultural legacy beginning immediately after 480 BCE and continuing to the present. Earliest attestation in Herodotus (~430 BCE) [^1]; modern cultural analysis in Cartledge (2006) [^2].
 - [x] `@q[missing]` Line 10: "Date: August 480 BCE (three days)" - what is the source?
 > Herodotus Histories 7.201-233 [^1] and Cartledge (2006) [^2].
 - [x] `@q[missing]` Line 11: "Location: Thermopylae pass ("Hot Gates"), central Greece" - what is the source?