421

Summary

421 is a year^[1]. 421 ranks in the top 4% of year entities by monthly Wikipedia readership (25 views/month).^[2]

Key Facts

• 421's instance of is recorded as year^[3].
• 421's follows is recorded as 420^[4].
• 421's followed by is recorded as 422^[5].
• 421's part of is recorded as 420s^[6].
• 421's Commons category is recorded as 421^[7].
• 421's point in time is recorded as +0421-01-01T00:00:00Z^[8].
• 421's topic's main category is recorded as Category:421^[9].
• 421's has list is recorded as list of state leaders in 421^[10].
• 421's permanent duplicated item is recorded as Q31800173^[11].
• 421's Cathopedia article ID is recorded as 421^[12].
• 421's category for births in this time period is recorded as Category:421 births^[13].
• 421's category for deaths in this time period is recorded as Category:421 deaths^[14].

Why It Matters

421 ranks in the top 4% of year entities by monthly Wikipedia readership (25 views/month).^[2] 421 has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.^[15] 421 is known by 10 alternative names across languages and contexts.^[16]