Calendarby GlyphHistory · Anniversaries
975th anniversary: Theodora Porphyrogenita became the sole ruler of the Byzantine Empire after the...
Fri, January 11, 2030
in 3 yr
In 1055, Theodora Porphyrogenita became the sole ruler of the Byzantine Empire after the death of her brother-in-law Constantine IX Monomachos.
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 975 years (1055 to 2030).
- Recurs
- annual
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- Changes
- 2026-09-25: added to 2030-01-11