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Walt Whitman publishes Leaves of Grass on July 4, 1855. Abe Lincoln become president on March 4, 1861 – April 14, 1865.

Walt Whitman publishes Leaves of Grass and Abraham Lincoln elected President.

Explanation:

The Declaration of Independence was written decades before the birth of Johannes Brahms and the Spanish-American war broke out a year after he died in Vienna, Austria age 63.

hello,

what started the norman conquest?

profound political, administrative, and social changes in the british isles. last line of my information: )