Berlin Wall By sophiaholliman May 1, 1945 WWI Ended WWI ends in Europe Jan 1, 1948 Soviet Blockade Soviet Blockade begins Jan 1, 1961 Wall is built Fence and concrete is placed Jan 1, 1965 Improvements on the Wall Concrete and fencing is improved Jan 1, 1965 Improvements on the Wall Concrete and fencing is improved Jun 12, 1987 Berlin Wall Speech Reagan delivers his speech on the wall