The thermometer was invented by Galileo Galilei in 1593. The thermometer consisted of water in a glass bulb.
Daniel Gabriel Fahrenheit was born on 24 May 1686 and he was Polish. He was a chemist and physicist. He used mercury plus a chemical solution and invented the mercury thermometer.
His parents died on August 14 1701 from eating poisonous mushrooms. When he was young he married Concordia Schumann.
In 1717 Fahrenheit became a glassblower, making barometers, altimeters and thermometers,.
He died in The Hague, Netherlands on the 16 of September 1736 and was buried at the Cloister Church.