In 1846, president polk negotiated a treaty with britain to divide

oregon

idaho

washington

california

A.)  Oregon

Explanation:

This agreement set the boundary between the United States and Canada at the 49th parallel west of the Rocky Mountains, veering around Vancouver Island and then proceeding through the Strait of San Juan de Fuca.

mickey : )

explanation:

why not?

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: