A historian using the historical thinking skill of examining historiography might try to determine how much has already been written about a certain subject before embarking on his or her own project, since this historiography of a topic can help you understand the evolution of "thinking about" the issue.
So this is what I know... white women were the first ones that represented the first women’s rights movements but they did not include any BIPOC (black, indigenous, people of color) in their movements
North Vietnam (aka communist Vietnam) gaining control of the government, and caused American troops to leave Vietnam