What is 500?
{{about|the year 500|the number|500 (number)}} {{Year nav|500}} {{Year in various calendars|500}} {{Year article header|500}} It is one of only seven years to use just one Roman numeral. The seven are [[1|1 AD]] (I), [[5|5 AD]] (V), [[10|10 AD]] (X), [[50|50 AD]] (L), [[100|100 AD]] (C), '''500 AD''' (D), and [[1000|1000 AD]] (M). == Events == *Possible date for the [[Battle of Mons Badonicus]]: [[Romano-British]] and [[Celts]] defeat an [[Anglo-Saxon]] army that may have been led by the [[bretwalda]] [[Aelle of Sussex]] (approximate date; suggested dates range from 490 to 510) Note: This battle may have influenced the legend of [[King Arthur]] *Possible date at which [[Fergus I of Dalriada]] begins his reign *Approximate beginning of the [[Heptarchy]] period in the [[history of England]] *Approximate year of the founding of the [[Kingdom of Essex]] *[[Emperor Xuanwu of Northern Wei China]] becomes sovereign of the [[Northern Wei Dynasty]] *[[Uxmal]] founded (approximate date) *Traders from southern [[Arabia]] settle in northern [[Ethiopia]] [[Category:500| ]]