Events in 1821

14 notable events from 1821.

• Greek War of Independence
  Jan 1, 1821–1829 · Türkiye
• Persecution of Muslims during the Ottoman decline
  Jan 1, 1821–Jan 1, 1922 · Türkiye
• Siege of Tripolitsa
  Apr 1, 1821–Sep 23, 1821 · Greece
• Wallachian uprising of 1821
  Aug 1, 1821 · Romania
• Constantinople massacre of 1821
  Apr 22, 1821–Jul 1821 · Türkiye
• Soma Daisaku incident
  May 24, 1821 · Japan
• Navarino massacre
  Aug 19, 1821 · Greece
• Massacre of Samothrace (1821)
  Sep 1, 1821 · Greece
• Miankale uprising (1821-1825)
  Jan 1, 1821 · Uzbekistan
• Beberibe Convention
  Aug 29, 1821–Oct 5, 1821 · —
• Saint-Barthélemy affair
  1821 · Saint Barthélemy
• Central American uprising of 1821
  1821 · Nicaragua
• Niš conspiracy (1821)
  1821 · —
• Fire of 1821 in Paramaribo
  1821 · Suriname