2. Archimedes Screw, c.700BC Purportedly devised by the ancient Greek physicist Archimedes of Syracuse in the 3rd century BC to expel bilge water from creaking ships, the screw that bears his name in fact predates Archimedes by about 400 years. Recent digs have established that earlier screws, which are capable of shifting water "uphill", were used in the Hanging Gardens of Babylon in the 7th century BC. So effective was the device, it is still used today in several irrigation ditches.
King Sennacherib was the son of Sargon II, whom he succeeded on the throne of Assyria (705 – 681 BC). (2 Chronicles 32) Then King Hezekiah and the prophet Isaiah son of Amoz cried out in prayer to God in heaven. 21 And the Lord sent an angel who destroyed the Assyrian army with all its commanders and officers. So Sennacherib was forced to return home in disgrace to his own land. And when he entered the temple of his god, some of his own sons killed him there with a sword.