Answer: the correct answer 1) They went to great lengths to ensure that their tombs would not be robbed.
Explanation: they didn't have so much success in taking precautions against robbers so their tombs were robbed and they have been robbed since then.
Answer: abolished slavery in the United States and provides that "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States
Explanation:
Montgomery bus boycott, mass protest against the bus system of Montgomery, Alabama, by civil rights activists and their supporters that led to a 1956 U.S. Supreme Court decision declaring that Montgomery's segregation laws on buses were unconstitutional. The 381-day bus boycott also brought the Rev.(Britannica.com)
The first president of the USA was George Washington.