How did Stalin deal with his political rival, Leon Trotsky

How did the house of wisdom contribute to social developments during the golden age

Why did leaders such as siddhartha gautama abandon hinduism to createbuddhism around 500 bce:

Match each treaty with its description. treatys- a the munich agreement b the pact of steel c the molotov-ribbentrop pact descriptions- 1- an alliance between germany and italy 2- an agreement between germany and the soviets dividing eastern europe 3-an agreement between germany, france, italy, and britain granting germany a small part of czechoslovakia in return for peace