Answer:
Methodist and Presbyterian missionaries established settlements
Lewis and Clark explored and mapped the interior.
John Jacob Astor made one of the first settlements.
Explanation:
The Oregon Territory was initially an extension of land owned by America until February 14th, 1859 when it was officially recognised as the State of Oregon and part of the Union.
Therefore, the three events that the United States used as a claim to the Oregon Territory are
Methodist and Presbyterian missionaries established settlements
Lewis and Clark explored and mapped the interior.
John Jacob Astor made one of the first settlements.
The first step historians take as part of the historical thinking process is to pose the historical question and establish relevant background about the topic. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Harriet Beecher Stowe is the auther of uncle toms cabin
Some new inventions, designs and ideas that were created in the 1780s include:
-1780 Bifocal glasses were invented by Benjamin Franklin
-1780 The circular saw was invented by Gervinus
-1784 The threshing machine was invented by Andrew Meikle
-1786 The steamboat was invented by John Fitch
-1785 The working parachute was invented by Blanchard
-1785 The power loom was invented by Edmund Cartwright
Hope this helps! :)
If you mean polio then <span>it dropped by 6000 in 1962 or the first year when the vaccine was released</span>
