1797

England

Alva J. Fisher

New Jersey

As early as 1767, Jacob Christian Schäffer of Germany created the first machine. In 1797, Nathaniel Briggs received the first patent for his invention. The washing machine inventors of the 1800s include Hamilton Smith, James King, and William Blackstone, who created one for his wife as a birthday present.

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1950s

Christiaan Huygens

Initially invented in the Netherlands by Christian Huygens all the way back in 1656, their early designs were quickly refined to greatly increase their precision. But when the first pendulum clock was brought to the Americas, something bizarre happened.

Johann Zahn

Benjamin Banneker

Pierre Charles L’Enfant

5,000 years ago

Telling time made it possible for prehistoric man to be able to plan any type of nomadic activity, any farming, sacred kind of feasts, or anything else that was important to him. One of the earliest of all devices to tell time was the sundial. The sundial is looked on as being a form of sun-powered clock.

The Romans also used water clocks which they calibrated from a sundial and so they could measure time even when the sun was not shining, at night or on foggy days. Known as a clepsydra, it uses a flow of water to measure time. The water clock made it possible to measure time in a simple and reasonably reliable way.

In the 1800s, the three main sources of determining the time were the clock at the center of your town, the railroads, and the sun, but it would not be uncommon for all three to tell you different times. Every city or town had the ability to set its own time so 1:05 PM in your town could be 1:15 the next town over.

Some communities marked high noon by dropping a large ball from a clock tower, or firing a canon, or sometimes having a tower clock centrally located chime the occasion with a loud bell. Individuals with clocks in their homes or pocket watches set their time accordingly.

Who invented clocks? According to historical records and archaeological finds the first time keeping devices known was developed by the Ancient Egyptians. Called Shadow Clocks, they were able to divide the day into 12-hour periods and used some of their enormous obelisks to track the movement of the sun.

It’s about time. The most precise atomic clock ever made has been created by arranging strontium atoms in a grid-like pattern and then stacking those grids like pancakes. Most atomic clocks use atoms of the isotope caesium-133.

Big Ben’s clock is powered by a double three-legged gravity escapement designed by Edmund Beckett Denison in 1851, which imparted unprecedented accuracy.

List of largest clock faces

It is believed Big Ben was named after Sir Benjamin Hall, First Commissioner for Works, whose name is inscribed on the bell. Others attest that the bell was named after Ben Caunt, a champion heavyweight boxer.

Augustus Pugin

Royal Liver Building Clock