It happenned on a… 27 April

In New York, NY, construction began on the 1,776-foot Freedom Tower on the site of former World Trade Center.

Nolan Ryan (Houston Astros) broke a 55-year-old major league baseball record when he struck out his 3,509th batter of his career.

Parti Quebecois government proposes the Charter of the French Language as Bill One in the National Assembly; to make French thee working language in Quebec and limit the use of English.

In Montreal, Prime Minister Lester Pearson lighted a flame to open Expo 67.

« Pampers » were patented by R.C. Duncan.

Mao Zedong resigns as Chairman of the PRC.

Leading Nazi and Reichsführer of the SS Heinrich Himmler orders establishment of Auschwitz Concentration Camp.

IV Summer (Modern) Olympic Games open in London.

Ludwig van Beethoven composes his famous piano piece « Für Elise ».