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Lightbulb Invented
In 1802, Humphry Davy invented the first electric light. -
B&O Railroad Strike
At first this railroad was located entirely in the state of Maryland with an original line from the port of Baltimore west to Sandy Hook. -
The Typewriter
The typewriter was inspired by Christopher Sholes. -
Telephone Invented
The telephone was invented by Alexander Graham Bell. -
Bessemer Process
The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. -
Oil in Pennsylvania
It was the first oil rush in the United States. -
Homestead Act
It was signed into law by Lincoln -
National Labor Union
Seventy-seven delegates attended the convention, and during its brief existence the National Labor Union may have had as many as 500,000 members. -
Airbrake Invented
Airbreaks was first used for trains but is now used for automobiles -
Transcontinental Railroad Built
Transcontinental railroads helped open up unpopulated interior regions of continents to exploration and settlement that would not otherwise have been feasible. -
Phonograph Invented
While working on improvements to the telegraph and the telephone, Edison figured out a way to record sound on tinfoil-coated cylinders -
Standard Oil Company
It was established by John D. Rockerfella in Ohio.
