Why might de Las Casas have spoken out against the encomienda system?

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire

This is the name of the 17th century conflict between those loyal to parliament and those loyal to british monarchy

¿por qué gran bretaña y francia trataron de evitar que estados unidos le vendiera productos al enemigo?