Traditionally petitions were paper documents which set out a specific point of view and people were invited to support that view by adding their signatures to the document.
Yn draddodiadol, dogfennau papur oedd deisebau, a oedd yn nodi safbwynt penodol ac yn gwahodd pobl i gefnogi’r farn honno drwy ychwanegu eu llofnodion at y ddogfen.