BC means before Christ while AD means after the birth of Christ, the one key difference between counting years in BC and AD is when you count time in BC the years decrease as you approach AD on the timeline.
Answer:
The many achievements of the ancient Egyptians include the quarrying, surveying and construction techniques (That supported the building of monumental pyramids, temples, and obelisks)
Explanation:
I believe that Egypts construction techniques were/are the most significant because they would express throughout building. Making temples for the gods they believed in and worshiped.
One cause of suburbanization in the United States during the 1920s was increased family income, due to the boom that took place in the American economy right before the Great Depression hit in 1929.
During the 19th century, the United States ability to remain isolated from European affairs was largely due to its "geographic location," since it is bordered by the two largest oceans in the world.
Henry claimed the right to try clergy in the royal courts.