Answer:
Hello There!!
Explanation:
I believe the answer is 1990.
hope thus helps,have a great day!!
~Pinky~
It’s estimated that there’s over 25,000 miles
<span>The treaty was signed on June 15, 1846,
ending the joint occupation with Great Britain and making most
Oregonians below the 49th parallel American citizens. ... When the
Colony of British Columbia joined Canada in 1871, the 49th Parallel and
marine boundaries established by the Oregon Treaty became the Canada–US border.</span>
Answer:
Railroads construction is your answer.
Explanation:
I think it was because of the weather in winter the Indians would migrate. I think that's the answer.