840s

Summary

840s is a decade^[1]. 840s draws 26 Wikipedia views per month (decade category, ranking #69 of 395).^[2]

Key Facts

• 840s's instance of is recorded as decade^[3].
• 840s followed 830s^[4].
• 840s was followed by 850s^[5].
• 840s is part of 9th century^[6].
• 840s's Commons category is recorded as 840s^[7].
• 840s comprises 843^[8].
• 840s comprises 844^[9].
• 840s comprises 849^[10].
• 840s comprises 842^[11].
• 840s comprises 841^[12].
• 840s comprises 845^[13].
• 840s comprises 840^[14].
• 840s comprises 847^[15].
• 840s comprises 848^[16].
• 840s comprises 846^[17].
• 840s occurred on January 1, 840^[18].
• 840s's topic's main category is recorded as Category:840s^[19].
• 840s's permanent duplicated item is recorded as Q31798972^[20].
• 840s's category for births in this time period is recorded as Category:840s births^[21].
• 840s's category for deaths in this time period is recorded as Category:840s deaths^[22].

Body

Definition and Type

840s's instance of is recorded as decade^[3].

Use and Application

Components include 843^[8], a year^[23]; 844^[9], a year^[24]; 849^[10], a year^[25]; 842^[11], a year^[26]; 841^[12], a year^[27]; and 845^[13], a year^[28]. 840s is part of 9th century^[6].

Why It Matters

840s draws 26 Wikipedia views per month (decade category, ranking #69 of 395).^[2] 840s has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.^[29] 840s is known by 4 alternative names across languages and contexts.^[30]