ON THIS DAY IN UNITED STATES HISTORY
March 10, 1876
Alexander Graham Bell Makes the First
Successful Telephone Call
On this day in 1876, Alexander Graham Bell makes history with the words "Mr. Watson, come here, I want to see
you" in the first successful telephone call.
Although Bell is credited as the inventor of the telephone and received a patent on "Improvements in Telegraphy"
other inventors had received patents for similar devices before then. It wasn't until March 10 that speech was
transmitted clearly with those now famous words.
March 10, 1848
The U.S. Ratifies the Treaty of Guadalupe Hidalgo
Ending the Mexican-American War
On this day in 1848, the Mexican-American War ended when the United States ratified the Treaty of Guadalupe
Hidalgo. In the negotiated treaty, Mexico gave up control of Texas and ceded all of present day California, Nevada,
Utah and part of four other modern-day states to the U.S. for $15 million.