page_title: 1840s
section_title: Economics
hierarchical_section_title: 1840s / Science and technology / Economics
caption_attribution_description: Kommunistisches Manifest, London 1848 Deutsch: Titelblatt des im Februar 1848 in London erschienenen Manifest der Kommunistischen Partei. English: Cover of the Communist Manifesto’s initial publication in February 1848 in London.
context_page_description: The 1840s was a decade of the Gregorian calendar that began on January 1, 1840, and ended on December 31, 1849.
  Throughout the decade, many countries worldwide saw many revolts and uprisings, with the most prominent ones happening in 1848. Aside from uprisings, the United States began to see a shifting population that migrated to the West Coast, as the California Gold Rush ensued in the latter half of the decade.
context_section_description: June 20, 1842 – Anselmo de Andrade, Portuguese economist and politician, is born in Vila Real de Santo António.
  August 28, 1844 – Friedrich Engels and Karl Marx meet in Paris, France.
  1845 – Friedrich Engels' treatise The Condition of the Working Class in England in 1844 is published in Leipzig as Die Lage der arbeitenden Klasse in England.
  June 1, 1847 – The first congress of the Communist League is held in London.
  February 21, 1848 – Karl Marx and Friedrich Engels publish The Communist Manifesto (Manifest der Kommunistischen Partei) in London.
caption: February 21: Karl Marx publishes The Communist Manifesto.
exif: {}