D is the answer general anthony
On March third 1918, Lenin signed a peace treaty that withdrew Russia from WWI.
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.
<span>It is a psychiatric treatment hospital known to be the worst hospital of psychiatric patients of all time, due to human maltreatment and poor conditions inside the hospital. The physical conditions of the building were unpleasant in the internal areas of the hospital, and the medical conditions towards the patients were inhuman. Patients were abused and discharged without a cure and were exposed to the dangers of the street.</span>