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Car
Nicolas-Joseph Cugnot invented the first self-propelled road vehicle in 1769. Car are important because they are an easy fast way of transportation -
marines
in tun tavern the marines were founded -
Computer
Charles Babbage invented the concept of a programmable computer in about 1856. -
Radio
In 1866 Mahlon Loomis provided the first demonstration of wireless communication, and then in 1895 Guglielmo Marconi sent the first radio signal. Radio developed from wireless telegraphy towards the end of the 19th century. Spark transmitters made a crackling noise in the receiver, speech and music was not possible. When thermionic tubes became available in the early 20th century it was now possible to modulated the transmitter current via the output of a carbon granule micro -
Telephone
In July of 1877, the Bell Telephone Company was formed by Gardiner Hubbard. The Charles Williams shop made the first telephones under the direction of Watson, who in effect was the Research and Development Department of the company. Alexander Graham Bell opted out of the day-to-day managing of the company and traveled to England, staying for over a year. By the end of 1877 there were three thousand telephones in service. -
19th amendment
granted women right to vote (1920). -
Emergency Quota Act
This act was to temporarily limit the numbers of immigrants to the United States by imposing quotas based on country of birth. Annual allowable quotas for each country of origin were calculated at 3 percent of the total number of foreign-born persons from that country recorded in the 1910 United States Census.Exceptions to the quotas were made for government official and their families, aliens who were passing through the US or visiting as tourists or temporary -
Black Thurday
The day new york stock exchange crashed. Prices for stock were too high. -
Franklin D. Roosevelt was elected President
Roosevelt led U.S. through WW2 -
the hoover dam constructed
this was a huge project involving thousands of workers and costing about 100 lives. the damn was dedicated to Franklin Roosevelt. -
21st amendment
Prohibition is over -
GI bill of rights
Ment to reabsorb millions of vetrans returning from WW -
internet
Development of internet started in 1957 when Sputnik I (the first satellite) was launched by Soviet Union. Americans felt threat by this and thought that the Soviet Union could also do bomb attacks from the space. So they created Defense Advanced Research Project Agency (DARPA) in 1958. It worked for the safety from space based missile attack. Then they made another satellite which was the first satellite of U.S.