Aristotle was born in the Macedonian city of Stagira, Chalkidice, on the northern periphery of Classical Greece. At the age of eighteen, he joined Plato's Academy in Athens and remained there until the age of thirty-seven.
The Treasury of Atreus or Tomb of Agamemnon is a large "tholos" tomb on the Panagitsa Hill at Mycenae, Greece, constructed during the Bronze Age around 1250 BC. The lintel stone above the doorway weighs 120 tons, with approximate dimensions 8.3 x 5.2 x 1.2m. The tomb has probably no relationship with either Atreus or Agamemnon, as archaeologists believe that the sovereign buried there ruled at an earlier date than the two.
Archimedes devised defensive devices to counter the Roman efforts including a huge crane operated hook – the Claw of Archimedes – that was used to lift the enemy ships out of the sea before dropping them to their doom.