Buddhist monks from different cultures would share Sanskrit. It was also carried on trade routes was learned in universities in other lands. Later it was forced upon other nations that the Gupta Empire would conquer.
I hope this helped!! (:
After deportation trains arrived at the killing centers, guards ordered the deportees to get out and form a line. The victims then went through a selection process. Men were separated from women and children. A Nazi, usually an SS physician, looked quickly at each person to decide if he or she was healthy and strong enough for forced labor. This SS officer then pointed to the left or the right; victims did not know that individuals were being selected to live or die. Babies and young children, pregnant women, the elderly, the handicapped, and the sick had little chance of surviving this first selection.