Inventions
People
Terms
Years
Inventors
100

Morse code was the language for this invention

the telegraph

100

He killed Alexander Hamilton in a duel

Aaron Burr

100

A state breaking away from the Union

secession

100

1803

Louisiana Purchase

100

invented the cotton gin

Eli Whitney

200

The most significant development of the transportation revolution

steam locomotives

200

The Shoshone girl who accompanied Lewis and Clark on their expedition

Sacagawea

200

Political party name created out of dislike for president Jackson

Whig party

200

1842

Webster-Ashburton Treaty

200

improved the sewing machine

Isaac Singer

300

What development made New Orleans a major commercial port?

steamboats

300

A slave rebellion in Virginia was led by this man

Nat Turner

300

A closed meeting of political party leaders

caucus

300

1814

End of War of 1812

300

developed the steamboat

Robert Fulton

400

The power loom was invented by this man who made factory life more humane than any other inventor

Francis Cabot Lowell

400

The author of the Star Spangled Banner

Francis Scott Key
400

The trail that Western settlers used to travel through the Cumberland Gap

Wilderness Road

400

1858

transatlantic cable laid

400

developed the reaping machine

Cyrus McCormick

500

John Deere invented this machine 

steel plow

500

The first female physician in the United States

Elizabeth Blackwell

500

A person who risks personal loss to created and market new ideas or products

entrepreneur

500

1819

Spain ceded Florida to the United States

500

Used nitrous oxide to ease the pain of dental work

Horace Wells