448 CC: Gwahaniaeth rhwng fersiynau

[[6ed ganrif6g CC]] - '''[[55g CC]]''' - [[4ydd ganrif4g CC]] <br />

[[490au CC]] [[480au CC]] [[470au CC]] [[460au CC]] [[450au CC]] - '''[[440au CC]]''' - [[430au CC]] [[420au CC]] [[410au CC]] [[400au CC]] [[390au CC]] <br />

[[453 CC]] [[452 CC]] [[451 CC]] [[450 CC]] [[449 CC]] - '''448 CC''' - [[447 CC]] [[446 CC]] [[445 CC]] [[444 CC]] [[443 CC]]
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