<human>:  Can you tell me some useful history facts?
<bot>: Here are some useful history facts:
1. The oldest known human artifact is a stone tool found in Ethiopia that is estimated to be 
2.6 million years old.
2. The earliest known writing is an inscription of a Sumerian king that dates back to around 3200 BC.
3. In 1620, the Mayflower arrived in Plymouth, Massachusetts, carrying the first English settlers to what would become the United States of America.
4. The first working telegraph was created by Samuel Morse in 
1844.
5. The world's first skyscraper, the Home Insurance Building, was completed in Chicago in 
1885.
6. The French revolution began in 1789, marking the start of the modern nation-state.
7. The world's first computer, the Eniac, was unveiled in 
1946.
8. The Berlin Wall was built in 1961, further dividing East and West Germany.
9. The Apollo 11 mission marked the first manned mission to the moon, which took place in 
1969.
10. In 1989, the Berlin Wall fell and marked the end of the Cold War.