After making a historical inventions by most of the nineteenth century, especially in his later years, one can make an obvious question. Is that nothing was invented? Because inventions and patents generated in some thirty years between the end of the nineteenth and early twentieth century, compared with those recorded a few decades ago, staggers the imagination to more fertile the most reasonable limits. Enumer:

Stapler
While not having the appearance of the nail that comfort rests on the table for any office, the stapler was invented in 1868 by a distant Britain's Henry Gould. Originally intended for workshops in bookbinding, soon marked a breakthrough for the periodicals could be distributed more easily.
Electric toothbrush
Invention of an American, whose name has been lost in the recesses of history, but his last name known as Scott, patented a variant of the classic toothbrush in 1885, consisting of an electric motor that provided the corresponding oral hygiene. The manuals referred to the invention say it was noisy, inconvenient and overpriced, resulting in a widespread unpopularity. It was not until the seventies of last century when the technology changed what needed to popularize.
Dow Jones
This economic information in our present time, the Dow Jones is known as the "index of securities Diaries," which was inspired by the statistical calculation invented in the year 1882 by Charles Henry Dow and Edward D. Jones, the first of which was also the founder of the Wall Street Journal. The Dow Jones is a calculation that allows the estimation of trends in the high or low of major companies listed on the New York Stock Exchange. This calculation, known by different names, exists for other securities in the world.

Semaphore
The first light of history was installed before the House of Commons. Based on the signaling of railways, was built in 1868 by engineer J. P. Knight and was an absolute failure, since one of the two gas lamps (one lit up in green and red) that the invention was based, erupted killing the agent of movement that was in his office. Knight, of course, abandoned the project after unfortunate incident.
It was in 1914, in Cleveland, Ohio, where the first traffic lights were installed based on an automation system. Four years after the traffic lights appear in three colors as we know it today.
Dustbin Community
A March 7, 1884 the Prefect of Police of Paris, Eugène Poublle, dictated by which one side is decreed that the owners of buildings should make available to the common leased containers where "deposit household waste." And is that the garbage, not only in the French capital, was placed in the courtyards of the houses, or directly on the street. It was obvious that this unhealthy habit only attracted to rodents, and in turn, to the disease than those infected.

Toilets
Invented in 1857 by Joseph Cayetty, in the United States, curiously was considered a decadent sophistication in most "civilized countries". Until after the Second World War was its use is not widespread.
Zipper
Patented as "Zip", was presented at the Exposition in Chicago in 1893. L invention of Whitcomb Judson, was to a sealing consisting of two chains of brackets that are linked to pull a kind of cursor.
Machine punch
Invention devised in 1894 by Daniel M. Cooper, character whose name has not gone down in history, especially among workers who to this day, with variations, continue to make use of his invention, a system was formed by a machine synchronized with a clock that showed, through a card, time of entry and exit of the worker. When he invented this "device" the workweek was six days.
Patented as "Zip", was presented at the Exposition in Chicago in 1893. L invention of Whitcomb Judson, was to a sealing consisting of two chains of brackets that are linked to pull a kind of cursor.

Vacuum cleaner
Invention of Ives W. McGaffey, an American, the invention was devised in 1871 for industrial use. It was based on a bomb trigger a propeller inverted, to be put into operation thanks to a steam engine. The invention evolved from the hands of British Hubert Cecil Booth, to install an electric motor. It was customary that the aircraft was manufactured and rent by the hour. In the early twentieth century, a watchdog of stores called J Murray Spangler and William H Hoover devised and marketed the first vacuum cleaner small and powered by an electric motor.
Electric chair
Conceived as a delivery system in 1888 by American Harold P. Brown and team leader Edison electricians, E. A Knneally, was tested on laboratory animals, being used for the first time in 1890 for a ajusticiar William Kemmler in New York. Twenty-five years after its invention had already been adopted as a delivery system so many other U.S. States.
Automatic dishwashers
Mrs. W. A. Cockran, born, it took ten years to create a marketable prototype of which would be the first automatic dishwashing. His efforts had begun in 1879. The operation was based on a steam engine, but it was so voluminous that it did not work in the market. It would not be until 1940 when he appeared in the first truly automatic dishwashers, and even the sixties were not coló in the kitchens of homes.
Checks
The checks were invention of the travel agency American Express, and date back to 1891. In fact, it was a variation of what came to be known as "credit card" letter allowing passengers to have an amount of money that is collected at the offices of a foreign country, which does not run risks Theft or loss of money.
Contact lenses
Known first as "corneanas lenses," are the work of the German ophthalmologist A. E. Fick, 1887. At first they were not widely used and were manufactured with glass. It would be in 1936 when a German company also, I. G. Farben, the factories in plexiglass, lighter. However, he was in the mid-50s of the twentieth century when it became popular to use. Made of methacrylate, with a diameter smaller than the previous ones, earned in lightness and were more comfortable to use.