In the USA?
A major event for the Women’s Suffrage Crusade is 1848’s Seneca Falls Convention where prominent leaders of the movement (such as Elizabeth Cady Stanton) drafted a constitution very similar to the current country’s constitution with the addition of women being added with “all men are created equal”, etc.
In 1920 the 19th Amendment was passed which gave women the right to vote.
The women’s suffrage movement was kind of put on the back burner due to the rise of World War 1 (not saying women’s right to vote wasn’t important but it was a global war). However, WWI brought the issue back to light when men returned home to find that women had taken their jobs at factories, etc and didn’t want to be pushed back into the home.
At the time, there were women who believed that women’s suffrage would cause problems and therefore didn’t support it.
2020 was the 100th year anniversary of women’s suffrage.
I honestly don’t know a ton about in countries so sorry about that.
The powers of the federal government are explained in the constitution
A. 1967/1968
The other answers weren't even during the time of the Vietnam Conflict, whereas Option A even coincides with protests close to Kent State in 1970.
The official first shot of the civil war, also known as the shot heard 'round the world because of its huge impact on the world, was shot while British forces were marching through a city while minute men were watching hidden. it is unknown which side shot first.