The only option that is not generally a reason why historians study societal change would be "<span>d. to estimate how long it would take to build a road system," since this requires a separate type of research. </span>
He was influential of being a military leader and the first president...
<span>The purpose of the Open Door Policy was to give all nations equal rights when trading with China, according to the Encyclopaedia Britannica. It was initiated by the United States and aimed to both enhance global trade and to promote China's welfare and sovereignty.</span>
Answer:
My dearest wife,
I've been through hell and lived to tell the tale. I cannot wait to crawl back into your arms, having witnessed this... massacre...friends dying left and right, brothers screaming for help...but only the roar of the guns was heard.
It's been the largest number of casualties I've even seen in my life...and oh God... I hope no one ever sees hell like this again.
We, the Union, have somehow defeated general Lee, and stopped the invasion.
I hope to see you soon,
Yours forever, Erik