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  1. 1930: The Supersonic combusting ramjet — Frank Whittle. 1930: The Phase-contrast microscopy is invented by Frits Zernike. 1931: The electron microscope is invented by Ernst Ruska. 1933: FM radio is patented by inventor Edwin H. Armstrong. 1935: Nylon, the first fully synthetic fiber is produced by Wallace Carothers while working at DuPont.

  2. The U.S. census has never asked Americans directly about their religion or religious beliefs, but it did compile statistics from each denomination starting in 1945.. Finke and Stark conducted a statistical analysis of the official census data after 1850, and Atlas for 1776, to estimate the number of Americans who were adherents to a specific denomination.

  3. Aug 03, 2022 · Civil War and Reconstruction (1850-1877) The Development of the Industrial United States (1870-1900) The Emergence of Modern America (1890-1930) The Great Depression and World War II (1929-1945) Postwar United States (1945 to early 1970s)

  4. Between 1850 and 1930, about 5 million Germans migrated to the United States, peaking between 1881 and 1885 when a million Germans settled primarily in the Midwest. Between 1820 and 1930, 3.5 million British and 4.5 million Irish entered America. Before 1845, most Irish immigrants were Protestants.

  5. › wiki › AmsterdamAmsterdam - Wikipedia

    The largest group of non-European visitors come from the United States, accounting for 14% of the total. Certain years have a theme in Amsterdam to attract extra tourists. For example, the year 2006 was designated "Rembrandt 400", to celebrate the 400th birthday of Rembrandt van Rijn. Some hotels offer special arrangements or activities during ...

  6. › wiki › MethodismMethodism - Wikipedia

    Methodism originated as a revival movement within the 18th-century Church of England and became a separate denomination after Wesley's death. The movement spread throughout the British Empire, the United States, and beyond because of vigorous missionary work, today claiming approximately 80 million adherents worldwide.

  7. About Our Coalition. Prop 30 is supported by a coalition including CalFire Firefighters, the American Lung Association, environmental organizations, electrical workers and businesses that want to improve California’s air quality by fighting and preventing wildfires and reducing air pollution from vehicles.

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    17th century economy examples united states timeline 1850 1930 to 2020 calendar