1) The first computer mouse was invented by Douglas Engelbart in 1964 and consisted of a wooden shell and two metal wheels.

2) The strongest natural material known to man is spider silk. It is stronger than steel and more flexible than nylon.

3) The political spectrum often includes the terms "left" and "right," with left-leaning ideologies generally advocating for social equality and progressive policies, while right-leaning ideologies support traditional values and limited government intervention.

4) The FIFA Women's World Cup has been held since 1991 and showcases the best women's national soccer teams from around the globe.