Acanceled us treasury check for the purchase of alaska is an example of which of the following?

A Primary source document is the correct answer.

Explanation:

The primary sources provided first hand evidence of an object, person or event. Historical and legal documents, accounts, eyewitnesses, pieces of creative writing, audio and video recording, etc are primary sources. These are documents that are created during the event.  It enables the researcher to get as close as possible to the historical event or the period under study. The canceled US Treasury check for the purchase of Alaska is a primary document.

Alaska was purchase by US from Russia on 1st August 1867 for 7,200,000 Dollars.

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.