Which describe isaac newton's accomplishments? choose all answers that are correct.
a. discovered that white light is made up of the many different colors of the spectrum
b. wrote mathematical principles of natural philosophy
c. was the originator of the expression, "knowledge is power"
d. often called the father of modern mathematics because of his coordinate system

Com que finalidade o papa leão x estabeleceu a venda de indulgencias?

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

Which of the following is not true of the xiongnu empire? burial mounds included glass beads and mirrors made from the sands throughout the region. there was more cooperation through trade between the tribes. other tribal units that were eventually assimilated were indo aryan, xianbei, hunyu, scythina and han chinese. as each nomadic tribe and civilization was conquered or absorbed into the larger empire, the xiongnu were able to hold more territory.