222

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Millennium: 1st millennium
Centuries: 2nd century3rd century4th century
Decades: 190s  200s  210s  – 220s –  230s  240s  250s
Years: 219 220 221222223 224 225

Events[change | change source]

References[change | change source]

  1. "Pope Urban I – Original Catholic Encyclopedia". Oce.catholic.com. 2010-07-21. http://oce.catholic.com/index.php?title=Pope_Urban_I. Retrieved 2010-08-25.
  2. "Quick Info". severusalexander.com. http://www.severusalexander.com/intro.htm. Retrieved 2010-08-25.
  3. "DIR Alexander Severus". Roman Emperors. 2001-06-15. http://www.roman-emperors.org/alexsev.htm. Retrieved 2010-08-25.