1) The first space flight was made by Y. Gagarin in Russia in 1961. 2) Mona Lisa was painted by Leonardo da Vinci in Italy between 1503 and 1505. 3) Gravity was discovered by Sir Isaac Newton in England in 1682. 4) A Nobel Prize for Physics was awarded to Albert Einstein in 1921. 5) Hamlet was written by W. Shakespeare in England in 1603. 6) America was discovered by Christopher Columbus in 1492.