An epigram is a brief, interesting, memorable, sometimes surprising or satirical statement. The word derives from the Greek ἐπίγραμμα. This literary device has been practiced for over two millennia.
Robert Hayman's 1628 book Quodlibets devotes much of its text to epigrams.
The Battle of Thermopylae was fought in 480 BC between the Achaemenid Persian Empire under Xerxes I and an alliance of Greek city-states led by Sparta under Leonidas I. Lasting over the course of three days, it was one of the most prominent battles of both the second Persian invasion of Greece and the wider Greco-Persian Wars.
Leonidas at Thermopylae (1814) Jacques-Louis David
The Spartans throw Persian envoys into a well
The site of the battle today. Mount Kallidromon on the left, and the wide coastal plain formed by accretion of fluvial deposits over the centuries; the road to the right approximates the 480 BC shoreline.
Soldiers of the Achaemenid army of Xerxes I at the time of the Battle of Thermopylae. Tomb of Xerxes I, circa 480 BC, Naqsh-e Rustam. Top rank: Persian, Median, Elamite, Parthian, Arian, Bactrian, Sogdian, Chorasmian, Zarangian, Sattagydian, Gandharan, Hindush (Indians), Scythian. Bottom rank: Scythian, Babylonian, Assyrian, Arabian, Egyptian, Armenian, Cappadocian, Lydian, Ionian, Scythian, Thracian, Macedonian, Libyan, Ethiopian.