Why was ostracism practiced in ancient Athens? Plz help me out ;-;

Anthony johnson, an african who arrived in virginia in 1621, a. learned the powhatan language and became a translator for governor thomas dale. b. owned slaves. c. translated the king james version of the holy bible into indian and african dialects. d. was the first slave who purchased his freedom with earnings from growing tobacco.

Answer correct get brainliest and 20 points

Historians sometimes rely on video recordings in researching past events because