3.
What percentage of men's income did women make in 1950? In 1970? In 2000?

After hovering at about 60 percent since the mid-1950s, the ratio of women's to men's median pay began to rise in the late 1970s and reached about 70 percent by 1990. The gender pay ratio is currently on the rise again, surpassing 75 percent in 1997.

By 2015, they were equal to 82.7 percent of men's real wages at the median—a substantial reduction in the wage gap.

it proved indian land claims were unjustified.