+868 is a [natural number](/wiki/Natural_Number), an even composite number that follows 867 and precedes 869. As a [year](/wiki/Year) in the Common Era, 868 AD marked various historical events, particularly within the [Middle Ages](/wiki/Middle_Ages).
+## See also
+- [Number](/wiki/Number)
+- [Even Number](/wiki/Even_Number)
+- [Composite Number](/wiki/Composite_Number)
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