Q:

When was Osbourn Dorsey born?

A:

According to Civil War Washington and an official petition for freedom from slavery, Osbourn Dorsey was "about eight months" old on May 19, 1862. This means his estimated birth date is around Sept. 19, 1862, but the exact date is not known.

Dorsey was a black inventor who received patent #210,764 for a door holding and closing device on Dec. 10, 1878. The first documented doorknob patent was issued the same year. According to About.com, other black inventors around Dorsey's time were James Henry Dunnington, who received a patent for a horse detacher on Mar. 16, 1897, and Phillip Downing, who received a patent for a street railway switch on June 17, 1890 and two separate patents for a letter box on Oct. 27, 1891.

Learn More

Related Questions

  • Q:

    What is Robert Boyle's middle name?

    A:

    Robert Boyle was born on Jan. 27, 1691 in County Waterford, Ireland, and there are no records indicating that Boyle had a middle name. He was a natural philosopher, chemist, inventor, theological writer and a preeminent figure in 17th century intellectual culture.

    Full Answer >
    Filed Under:
  • Q:

    When were the Wright brothers born?

    A:

    Orville Wright was born on Aug. 19, 1871, and Wilbur Wright was born on April 16, 1867. The Wright brothers were American inventors credited with building the first airplane and the first controlled, powered and sustained flight on Dec. 17, 1903.

    Full Answer >
    Filed Under:
  • Q:

    Where did "Rutherford" come from?

    A:

    Jack Rutherford, the artist and teacher, was born in California. He became an artist at 11 under the tutelage of watercolorist Mr. Walline. At 23 he began studying with Karl Seethaler of the Long Beach Academy of Art. He now lives in Spain.

    Full Answer >
    Filed Under:
  • Q:

    When was Leonardo da Vinci born?

    A:

    Leonardo da Vinci was born on April 15,1452 in Vinci, Italy. Da Vinci became one of the most important painters of the Italian Renaissance. Some of his most famous artwork includes the “Mona Lisa” and “The Last Supper.”

    Full Answer >
    Filed Under:

Explore