2013 Event Britain's Prime Minister, David Cameron, lays out his intention to renegotiate terms with the EU, and subsequent plan to offer a referendum on his country's withdrawal from the EU if a new deal is agreed 1939 Event Franklin D. Roosevelt lays cornerstone of Jefferson Memorial in Washington D.C. 1862 Event General Pope lays siege in front of New Madrid 1793 Event President Washington lays cornerstone of Capitol building 1792 Event Washington lays cornerstone of Executive Mansion (White House) 1680 Event Hen in Rome lays an egg imprinted with comet not seen until Dec 16th 1675 Event King Charles II lays foundation stone of Royal Observatory, Greenwich 1248 Event Archbishop Konrad vs. Hochstaden lays cornerstone for Koln cathedral
