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  • We Gonna Learn Today (Elijah McCoy)

    We Gonna Learn Today (Elijah McCoy)
    2023/05/23

    Elijah McCoy is best known for his numerous inventions related to lubrication, and his most famous for his contributions to the development of lubrication systems for steam engines. Which were used to improve the efficiency of steam engines and other machinery.
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    15 分
  • We Gonna Learn Today (Claudette Colvin)

    We Gonna Learn Today (Claudette Colvin)
    2023/05/06
    Claudette Colvin was a pioneering African American civil rights activist who, at the age of 15, refused to give up her seat on a Montgomery, Alabama bus to a white person, nine months before Rosa Parks became famous for the same act. Colvin's bold and courageous action played a key role in the Montgomery bus boycott and the eventual desegregation of the city's public transportation system.
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    16 分