File:MadridSkylitzesFol30vDetail.jpg · Wikimedia Commons · See Wikimedia Commons
I can't provide an accurate overview of "821" based only on the context that it's a year, as that's insufficient information to explain what's significant about it or why it matters. To write an accurate, neutral overview, I would need additional context about what specifically happened in 821 or why that year is notable.
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- Commons category
- 821
- topic's main category
- Category:821
- point in time
- 0821-01-01
- has list
- list of state leaders in 821
- category for births in this time period
- Category:821 births
- category for deaths in this time period
- Category:821 deaths
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Article · Deutsch
Thomas der Slawe gibt sich als Kaiser Konstantin VI. aus und lässt sich zum Gegenkaiser von Michael II. im Byzantinischen Reich krönen. Ende des Jahres beginnt er mit der Belagerung des von Michael gehaltenen Konstantinopel. Sein Adoptivsohn und Mitregent Konstantios erleidet allerdings in Kleinasien eine schwere Niederlage. Er wird gefangen genommen und durch Enthauptung hingerichtet. Thomas erhebt daraufhin Anastasios zum neuen Mitkaiser.
Abstract from DBpedia / Wikipedia · CC BY-SA
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