How the trans-Atlantic slave system contribute to the development of colonial America

  How did the trans-Atlantic slave system contribute to the development of colonial America? How and why did Virginia shift from indentured servitude to slavery? What reasons did 19th century slave owners use to justify the use of Black slave labor? Why did Reconstruction end, and what effect did it have on free Black communities? What are Jim Crow laws? Why were they adopted in many southern states? Explain key events and figures of the civil rights movement. How did the movement develop?