Who made the most accurate calendar before a. d.900?

What is thomas? -a congressional blog -a congressional newspaper -a legislative records tracking system -a piece of legislation

African crossing the delaware on christmas night,1776, washington and his troops were victorious in which two battles

The first ten amendments, known as the bill of rights, protect individual freedoms and limit the power of the federal government. what amendment limits the powers of the state government and extends bill of rights' protections to citizens of a state? a) 12th amendment b) 14th amendment c) 15th amendment d) 17th amendment