
1934 - The metal beverage can is invented (American Can Co., United States)
1940 - Southbridge, Massachusetts
Name: Roger Leboeuf
Event Type: Census
Event Date: 1940
Event Place: Southbridge Town, Worcester, Massachusetts, United States
Sex: Male
Age: 16
Marital Status: Single
Race (Original): White
Race: White
Relationship to Head of Household (Original): Son
Relationship to Head of Household: Son
BirthPlace: Massachusetts
Birth Year (Estimated): 1924
Last Place of Residence: Same House
Household Role Sex Age Birthplace
Romeo Leboeuf Head Male 44 Massachusetts
Yvonne Leboeuf Wife Female 44 Massachusetts
Hermas Leboeuf Son Male 20 Massachusetts
Roger Leboeuf Son Male 16 Massachusetts
Rejane Leboeuf Daughter Female 13 Massachusetts

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)

1989 - The World Wide Web is invented at CERN (Tim Berners-Lee, UK)
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