Y gwahaniaeth rhwng diwygiadau o "Gemau Olympaidd yr Haf 1912"

Ychwanegwyd 7 beit ,  7 o flynyddoedd yn ôl
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File renamed: File:1912 Olympic games countries.PNGFile:1912 Summer Olympic games countries.png FR 6 Harmonize file names of a set of images (so that only one part of all names differs)
B (File renamed: File:1912 Olympic games countries.PNGFile:1912 Summer Olympic games countries.png FR 6 Harmonize file names of a set of images (so that only one part of all names differs))
 
== Cenhedloedd a gyfranogodd ==
[[Delwedd:1912 Summer Olympic games countries.PNGpng|bawd|240px|Y cyfranogwyr]]
Roedd athletwyr yn cynyrchioli 28 [[Pwyllgor Cenedlaethol Olympaidd]].
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golygiad