How were the great stone tombs built?

Who is considered responsible for having introduced the principle of talion to Mesopotamian culture? What issue almost deadlocked the constitutional convention until it could find a compromise solution? What are the good and bad points of dropping the atomic bombs on Hiroshima and Nagasaki? Who were the fathers of English novel? What huge event affected slavery in 1865 after the American civil war? Who was edward vi married to? How long did the fort ancient build mounds? Why was the Cave of Lascaux closed to the public in 1963? What is the base SI unit for mass and how is it defined in the International System of Units? How did people adapt to life on the great plains? What leadership qualities helped the conquistadors and early explorers succeed in their efforts? What statements is the best description of risorgimento? Who said a ship in harbor is safe but that is not what ships are made for? What is the connection between mercantilism and colonialism? Does China and north Korea have gold and diamonds? What do people buy and sell in the tang dynasty? How large is New Jersey? What was the name of the Arabian horse Patton road in ww2? Isn't it true that the seventh head of the beast of Revelation is the British American Empire? How many levels are in rail rush?