Why did congress pass the voting rights act of 1965?

It was passed in order to prevent racist people from southern states from banning African-Americans from voting. They had things like literacy tests or vote taxes or similar things that would pose a problem for African-Americans of the time and all these types of laws became prohibited and were declared unconstitutional by the congress.

The first one is russia because in russia they were on the rough times and they never had a way to get out of

Very useful. it is to learn because history repeats itself so learning about it those mistakes not happen again.