WHAT ALL HAPPENED FEBRUARY TO APRIL 1911
Find out what all happened February to April 1911

During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti (Skenderbeg). (6. April 1911)

The Australian Bureau of Statistics conducts the country's first national census. (2. April 1911)

Dutch physicist Heike Kamerlingh Onnes discovers superconductivity. (8. April 1911)

The M1911 .45 ACP pistol becomes the official U.S. Army side arm. (29. March 1911)

In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers. (25. March 1911)

The first official flight with air mail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2 mi) away. (18. February 1911)

Tsinghua University, one of mainland China's leading universities, is founded. (22. April 1911)

Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate. (27. April 1911)

International Women's Day is launched in Copenhagen, Denmark, by Clara Zetkin, leader of the Women's Office for the Social Democratic Party in Germany. (8. March 1911)