The main reason for coastal kingdoms trading with Portugal, Spain and Great Britain was

All three were empires

Explanation:

these 3 were huge empires, and they were the first to find some of the coastal kingdoms, thus they couldn't trade with anyone else

Hope this helps! :D

just don't strip down in public lol

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.