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Mary Agnes CARR was born abt. 1908 in New York, USA
Mary Agnes CARR was the child of Maro Wheeler CARR and Maud Elizabeth BLACKSTOCK and the grandchild of: (paternal) Hartman H CARR and Lucy Bristol HOAGLAND (maternal) Joseph BLACKSTOCK and Mary A UNKNOWNMary Agnes CARR died abt. 1989
m. ? Chrisman
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Discovering the Ancestry of Mary Agnes CARR: Events, Photos & Historical Records
1913 - The assembly line is invented (Henry Ford, United States)The bra is invented (Mary Phelps Jacob, United States)
1934 - The metal beverage can is invented (American Can Co., United States) 1940 - April - 1st electron microscope demonstrated (RCA), Philadelphia, Pennsylvania, USA The microwave oven was invented accidentally in 1945 by Percy Spencer, a Raytheon engineer. While testing a magnetron, he noticed microwaves melted a candy bar in his pocket. Experimenting further, he discovered microwaves could cook food quickly. Raytheon patented the process, and by 1947, they built the first commercial microwave oven, called the 'Radarange.' Initially used in commercial settings, microwaves becomes affordable for home use by the 1960s and 1970s, revolutionizing cooking. The cell phone was invented by Martin Cooper of Motorola. On April 3, 1973, he made the first handheld mobile phone call with the Motorola DynaTAC. This device weighed 2.5 pounds and was 10 inches long, offering 30 minutes of talk time and requiring 10 hours to charge. The first commercial cell phone was released in 1983, revolutionizing communication and leading to the modern smartphones we use today.
1981 - June 5 - First reported case of AIDS (Acquired Immune Deficiency Syndrome)
Added: 4/3/2022 5:11:12 PM
- Updated: 4/3/2022 5:16:38 PM
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