Posts By Seth Goldman

  1. On this day… Zooming Camera Lenses!

    On this day in 1947, Dr. Frank Gerard Back demonstrated the first camera with a zoom feature. This feature was made possible by the invention of the “varifocal lens.”  Prior to this invention, photographers were required to move their cameras closer to their object to simulate “zoom.” Dr. Back first showed off his invention at […]

  2. On this day… Alaska Purchase!

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    On this date in 1867, the United States ratified a treaty with Russia, which led to the acquisition of Alaska! Also referred to as “The Alaska Purchase,” the treaty sent $7.2 million dollars to Russia in exchange for the land of Alaska. Geographically, the state of Alaska is twice the size of Texas, which meant […]

  3. On this day… First Full-time Movie Theater Opened!

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    On this day in 1902, the first full-time movie theater opened! Thomas Lincoln Talley opened The Electric Theater in Los Angeles, California 112 years ago as part of a carnival. Before full-time movie theaters, people watched films in “kinetoscopes,” which only allowed for one viewer at a time, and were often considered lower-class. After opening […]

  4. On this day… Robert Frost was born!

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    On this day in 1874, four-time Pulitzer Prize-winning poet Robert Frost was born. For the first eleven years of his life, his family lived in San Francisco. Following the death of his father, the family moved to Massachusetts, where Frost developed an interest in reading and poetry. After high school, Robert Frost attended Dartmouth College […]

  5. On this day… Time Zones!

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    On this day in 1918, standard time zones and daylight savings were established and signed into law. Prior to this legislation, time zones in the United States were dictated by American railroad companies. This would cause confusion when two different railroad companies shared a common station and reported different times. Many railroad companies determined their […]

  6. On this day… Gandhi’s Salt March began!

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    On this day in 1930, Mohandas Gandhi’s Salt March began. Indians participated in the Salt March to challenge the British taxation and monopoly on salt. A critical part of the Indian independence movement, Gandhi rallied thousands of his peers to walk 240 miles to the coastal village of Dandi. The demonstrators collected salt from the beach’s shores while refusing to pay the British Salt Act’s steep taxes. This […]

  7. On this day… Boston Massacre

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    On this day in 1770, British soldiers fired into a group of colonial patriots in what is known as the “Boston Massacre.” Five civilians lost their lives in what is considered to be a critical incident leading up to the Revolutionary War. The colonials had grown tired of the British occupation and taxation in the American […]

  8. On this day… birth of Levi Strauss!

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    On this day in 1829, Levi Strauss was born in Buttenheim, Bavaria (now Germany). Strauss moved to New York in 1846, where his brothers owned a dry goods business. In 1853, Strauss moved again—this time to San Francisco, California. Strauss opened his own dry goods business on the West Coast, and called it “Levi Strauss […]

  9. On this day… Thomas Edison patents the Phonograph!

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    On this day in 1877, Thomas Edison patented the phonograph. Phonographs were among the first devices to both record and play audio recordings. Phonographs record audio using needles, which use sound waves to create etches into a foil-covered cylinder. As the cylinder rotates, a second needle runs along these etches and plays the recorded audio. […]

  10. On this day… Founding of the NAACP!

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    On this day in 1909… The National Association for the Advancement of Colored People (NAACP) was founded. The organization’s mission is to achieve and maintain a society without racial discrimination. Currently the largest civil rights group in the United States, the NAACP was a driving force behind the end of lynching in the early-to-mid 1900s, […]