Traders opened the Santa Fe Trail from Missouri to the Southwest in 1822.
Traders opened the Santa Fe Trail from Missouri to the Southwest in 1822.
In 1839, African captives on the slave ship Amistad mutinied
In 1839, African captives on the slave ship Amistad mutinied
The cotton gin made large-scale production of cotton profitable, leading to the expansion of slavery.
The cotton gin made large-scale production of cotton profitable, leading to the expansion of slavery.
U.S. forces invaded Mexico in 1846, claiming nearly half of Mexico’s territory for the United States. Here, General Scott enters Mexico City with his troops.
U.S. forces invaded Mexico in 1846, claiming nearly half of Mexico’s territory for the United States. Here, General Scott enters Mexico City with his troops.
The United States and its allies airlifted supplies
The United States and its allies airlifted supplies
Millions of World War II and Korean War veterans furthered their education, thanks to the GI Bill.
Millions of World War II and Korean War veterans furthered their education, thanks to the GI Bill.
The 1950s witnessed a rush to the suburbs, with new housing developments like Levittown, Pennsylvania.
The 1950s witnessed a rush to the suburbs, with new housing developments like Levittown, Pennsylvania.
Astronaut Buzz Aldrin posed with the U.S. flag on the first lunar landing, July 20, 1969.
Astronaut Buzz Aldrin posed with the U.S. flag on the first lunar landing, July 20, 1969.
The Erie Canal, completed in 1825, provided passage from the Hudson River to Lake Erie.
The Erie Canal, completed in 1825, provided passage from the Hudson River to Lake Erie.