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By the early 1880s, John Rockefekker's company controlled about 90 percent of US refineries and pipelines. His first oil refinery was near Cleveland. His oil company had a huge impact on America, and still has a big impact to this day.
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Alexander was asked by a group of inventors to help create "the perfect harmonic telegraph".The telegraph allows many messages to be sent over the wire. He was then focused on developing a voice transmitting device, called the telephone.
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Thomas and his team tested over 3,000 bulbs from 1878-1880. Thomas passed electricity through a thin platinum filament in a glass Vaccum bulb. Doing that delated the filament from melting.
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There were many reasons the US declared war on Spain. The thing that really got them to declare was was the sinking of the battleship Maine. The US won and ended the war with the signing of the Treaty of Paris.
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This act was the first of a series of consumer protection laws. It was made by congress in the 20th century. It was an act to give consumers the best and safest food.
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His first car was known as the quadricycle. The quadricycle was the first automobile he ever designed or drove. He was the first to make affordable cars for average Americans.
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Austria and his wife got assassinated by a Bosnian Serb nationalist. He was doing an official visit to the Bosnian capital of Sarajevo. With the assassination of him, there were many events that led up to the start of WW1.
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The opening of the Panama canal was big. It shortened the ship's travel to the Atlantic to Pacific or from the Pacific to Atlantic. It also let shippers ship goods at a cheaper cost.
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America joined because of the Germans' decision to resume the policy of unrestricted submarine warfare. America joined its allies, Britain, France, and Russia. America had more than 2 million US soldiers in the war.
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Women's right to vote started with the women's suffrage movement. They started fighting for their right to vote at the beginning of the 19th century. That was the 19th amendment.