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California State Parks: Dogs on State Beaches In general, dogs are permitted in most state parks but must be on a leash not exceeding six feet in length at all times.
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Archaeology chronometric dating

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The lever escapement was the single most important technological breakthrough, and was invented by Thomas Mudge in 1759 and improved by Josiah Emery in 1785, although it only gradually came into use from about 1800 onwards, chiefly in Britain.

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Some modern designs incorporate calculators, GPS and Bluetooth technology or have heart-rate monitoring capabilities.

The Garstin Company of London patented a "Watch Wristlet" design in 1893, but they were probably producing similar designs from the 1880s.

Officers in the British Army began using wristwatches during colonial military campaigns in the 1880s, such as during the Anglo-Burma War of 1885.

Watches progressed in the 17th century from spring-powered clocks, which appeared as early as the 14th century.

During most of its history the watch was a mechanical device, driven by clockwork, powered by winding a mainspring, and keeping time with an oscillating balance wheel.