page_title: 1803
section_title: January–June
hierarchical_section_title: 1803 / Births / January–June
caption_attribution_description: English: Justus Freiherr von Liebig (12 May 1803 – 18 April 1873)
context_page_description: 1803 was a common year starting on Saturday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1803rd year of the Common Era and Anno Domini designations, the 803rd year of the 2nd millennium, the 3rd year of the 19th century, and the 4th year of the 1800s decade. As of the start of 1803, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
context_section_description: February 2 – Albert Sidney Johnston, American Confederate general (d. 1862)
  February 15
  John Sutter, German-American pioneer (d. 1880)
  Karl Friedrich Schimper, German botanist, naturalist and poet (d. 1867)
  February 26 – Arnold Adolph Berthold, German physiologist, zoologist (d. 1861)
  March 12 – Guillaume de Felice, Savoy nobleman, abolitionist (d. 1871)
  March 16 – Nikolay Yazykov, Russian poet, Slavophile (d. 1846)
  April 7 – Flora Tristan, French feminist (d. 1844)
  April 30
  Jeremiah E. Cary, American politician (d. 1888)
  Albrecht von Roon, Prime Minister of Prussia (d. 1879)
  May 12 – Justus von Liebig, German chemist (d. 1873)
  May 20 – Ann Walker, English landowner and philanthropist (d. 1854)
  May 24 – Charles Lucien Bonaparte, French naturalist, ornithologist (d. 1857)
  May 25
  Edward Bulwer-Lytton, English novelist, playwright and politician (d. 1873)
  Ralph Waldo Emerson, American writer (d. 1882)
  June 8 – Amalia Assur, Swedish dentist (d. 1889)
  June 24 – George James Webb, English-born composer (d. 1887)
caption: Justus von Liebig
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