World war ii what and how caused it to begin with

Which of the following describes the interactions between muslim and hindu societies in the ind around 1000 ad? they peacefully coexisted. the muslim invaders saw the hindu as a people to subdue and rule over the hindu's violence suppressed muslim attempts of conversion the invading islamic forces used the treasures of hindu culture to build their own empire the islamic invaders allowed the hindus to continue to worship as they chose despite pressures to convert next question ask for

What was the main point of truman doctrine ?

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.