What caused the breakdown of the reservation system?

What problems do you think an open door policy creates? Why did English settlers wait a number of years to return to the colony? Why was the encomienda system originally created? What does El Hombre Al Cruce represent? What were the changes in the French government inevitable? What was the name of the first African-American women to go into Space? When did the highwaymen start up? Who was the most successful emperor of ancient rome besides Caesar? What are the two major forces? Who else was with Robert E. Lee at Appomatox Court House to end the Civil War? What was the important political leader of ancient Rome? Choose two of the countries you researched and answer the following question. How were these countries' approaches to the Great Depression similar? How do you spell adolf hittler? Why should you be thankful for veterans? What dog is known as the gray ghost? Where did the pilgrams land in America? What are the events of Kristallnacht? Ways of life of early Filipinos? What are American Military Rations called? How many people served on pearl harbor?