El Pensador Mexicano es el seudónimo de Bernal Díaz del Castillo. Cierto o falso

During the invasion of the soviet union, the einsatzgruppen did which of the following? killed large numbers of jews, as well as many locals. led military troops. eliminated local administration in lithuania. took over many administrative functions in the war effort. planned and organized extermination camps.

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.

What kind of contact did christopher columbus and native americans initially have?