840

Summary

840 is a year^[1]. 840 ranks in the top 5% of year entities by monthly Wikipedia readership (18 views/month).^[2]

Key Facts

• 840's instance of is recorded as year^[3].
• 840's follows is recorded as 839^[4].
• 840's followed by is recorded as 841^[5].
• 840's part of is recorded as 840s^[6].
• 840's Commons category is recorded as 840^[7].
• 840's point in time is recorded as +0840-01-01T00:00:00Z^[8].
• 840's topic's main category is recorded as Category:840^[9].
• 840's has list is recorded as list of state leaders in 840^[10].
• 840's permanent duplicated item is recorded as Q31800951^[11].
• 840's Cathopedia article ID is recorded as 840^[12].
• 840's category for births in this time period is recorded as Category:840 births^[13].
• 840's category for deaths in this time period is recorded as Category:840 deaths^[14].
• 840's Vikidia article ID is recorded as fr:840^[15].

Why It Matters

840 ranks in the top 5% of year entities by monthly Wikipedia readership (18 views/month).^[2] 840 has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[16] 840 is known by 9 alternative names across languages and contexts.^[17]