1870-1880


 * ​Student 7 & student 8
 * 1870 - Chewing Gum After he was defeated, Mexican General Santa Anna was exiled to New York. Like many of his countrymen, Santa Anna chewed chicle. One day he introduced it to inventor Thomas Adams, who began experimenting with it as a substitute for rubber. Adams tried to make toys, masks, and rain boots out of chicle, but every experiment failed. Sitting in his workshop one day,tired and discouraged, he popped a piece of surplus stock into his mouth. In 1870, he opened the world’s first chewing gum factory.


 * 1871 - Cable car (railway) On January 17, 1871, San Franciscan Andrew Smith Hallidie patented the first cable car, which spared many horses the hard work of moving people over the city's roadways. Using metal ropes he had put together, Hallidie built a mechanism by which cars were drawn by an endless cable running in a slot between the rails which passed over a steam-driven shaft in the powerhouse.


 * 1873 - Blue Jeans In 1873, San Francisco businessman Levi Strauss and Reno, Nevada, tailor Jacob Davis are given a patent to create work pants reinforced with metal rivets, marking the birth of one of the world's most famous garments: blue jeans.
 * ​1874 - Barbed Wire Joseph F. Glidden of Dekalb, Illinois attended a county fair where he observed a demonstration of a wooden rail with sharp nails protruding along its sides, hanging inside a smooth wire fence. This inspired him to invent and patent a successful barbed wire in the form we recognize today.


 * 1876 - telephone invented March 10, 1876, Alexander Graham Bell successfully tested the first telephone. The initial test was accidental. It happened when Bell spilled some acid on his leg and called out for Watson to come and help him. Watson heard Bell's request through the telephone instrument that they were working on. 1876 - Telephone Invented
 * 1877 - Phonograph Invented by Edison On December 15th, Thomas Edison applied for a patent for his phonograph. Edison initially believed it would be used to record business sessions, or family voices. Edison became famous with this invention and was invited to the White House for a demonstration.


 * 1878 - Cream seperator Butter was made entirely from cream that was separated by means of the gravity method. The process was slow, the cream was usually sour, and the separation was so incomplete that considerable cream was left in the skimmilk. The idea of separating the cream from whole milk by whirling the milk did not originate; with De Laval, but he. was the first to devise a machine that would accomplish that purpose in a practical way.


 * 1879 - Electric Light Invented -Thomas Edison overcame the obstacle to finding a light bulb that would burn long enough to become commercially viable by developing a bulb based on carbonized cotton. The invention of the light bulb began the electrical revolution that soon swept the country and the world.

By 1870, the job of tallying and tabulating questionnaire responses was becoming overly burdensome for the Census Office. This problem was partially alleviated with the use of a rudimentary tallying machine
 * In 1880 the first cash register is patented by jacob ritty.

Timeline from 1870 to 1880