People who overthrew the inherited ideas about logic, language, learning, mathematics, economics, space and time of the old century

• Albert Einstein (born 1879, died 1955)

  German-American physicist whose theories of relativity greatly influenced 20th-century science and culture.

  • Time Magazine Man of the 20th century
• Wilbur Wright (born 1867, died 1912)

  American inventor, aviation pioneer, and airplane manufacturer.

  • One of the greatest inventors of the 20th century
• Sigmund Freud (born 1856, died 1939)

  Austrian psychiatrist.

  • Leading explorer of the human psyche
• Orville Wright (born 1871, died 1948)

  American inventor, aviation pioneer, and aircraft manufacturer.

  • One of the greatest inventors of the 20th century
• Leo Baekeland (born 1863, died 1944)
  • Inventor of plastic