The exact origins of ice cream are unknown. Ice cream has been known to exist since second century B.C., with no known inventor being credited for its invention. Ice cream was known to be eaten only by royalty and nobles. It wasn't until 1660 that ice cream was made available to the general public in Europe. The first documented account of ice cream in the US was from a letter written in 1744.
Ice cream remained rare in the United States until 1800, most commonly being consumed by the wealthy and powerful. Many US presidents, such as George Washington and Thomas Jefferson, who enjoyed his own personal recipie. It wasn't until 1851 that ice cream manufacturing became an industry. A Baltimore milk dealer named Jacob Fussell pioneered the production of ice cream. US ice cream production increased because of technological innovations, such as steam power, and mechanical refrigeration. Today, frozen dairy annual production in the United States is more than 1.6 billion gallons.
It is easy (and a great science experiment) to make ice cream at home. Milk, sugar, and your favourite syrups, ice, and undustrial salt is all you need. Mix in milk, sugar, and flavouring syrups(ex. chocolate, straberry syrup) into a air tight bag. Fill a larger bag with chunks of ice and salt, and place the mixing bag into the ice bag, and seal. Now, SHAKE IT. Shake the bag, pass it around, throw it. Keep shaking the bag for around 10 minutes. The salt causes the ice to drop more in temperature, allowing for the thickening of your mixture. Once the mixture has solidified, open the ice bag, remove the mixing bag, and enjoy!!!