What events occurred starting in 1917 that led to suffrage for women

In 1917 several important events related to women suffrage took place:

Women in NY voted for the first timeThere were demonstrations in front of the White House of women who claimed for their voting rights directly to the US PresidentA woman from Montana was the first one to be elected for Congress. She accessed a seat in the House of Representatives. Detentions of women who protested for suffrage took place. These were released due to the preassure exercised by the public opinion.

Carbon monoxide is usually more dangerous indoors.

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.