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United States capital is moved from Philadelphia to Washington, DC. -
Thomas Jefferson is inaugurated as the third president. -
United States declares war on Britain over British interference with American maritime shipping and westward expansion. -
Maine is admitted as a free state so that Missouri can be admitted as a slave state. -
Texas declares Independence from Mexico. -
United States declares war on Mexico in effort to gain California and other territory in Southwest. -
The first major battle of the Civil War fought near Manassas, VA between the Confederate and Union armies. This battle resulted with the Confederate's winning. -
Alexander Graham Bell invented the first ever telephone. This helped speed the process of transmitting messages by telegraphy.