2015 Event Scientists have concluded that a large ocean exists beneath the icy surface of Ganymede, the largest moon of Jupiter; the discovery was made by using the Hubble Space Telescope to observe aurora movements at the moon's poles 2010 Event Tens of thousands of Poles line the streets to witness the procession of President Kaczynski, en route to the Presidential Palace, Warsaw, where he will lie in state 1973 Event Jackson Pollocks painting "Blue Poles" sold for $2,000,000 1939 Event Russia invades Eastern Poland, takes 217,000 Poles prisoner 1861 Event Russians shoot at Poles protesting Russian rule of Poland 1487 Event Lord Lovell and John de la Poles army land at Furness Lancashire 1241 Event Battle of Liegnitz - Mongol armies defeat Poles and Germans
