Note https://en.wikipedia.org/wiki/%C4%92ostre not Ishtar. While we don't have much evidence for a goddess called Eostre she appears to have been the origin for the name of Easter in English and maybe German. That is according to an 8th century English Monk(don't have any other sources, so I think it might not be universal believed by historians). But on the other hand there's not much evidence much besides the name (and only in English and maybe German) transferred and despite claims of some bunnies and eggs appear to be much later customs. Also in most languages Easter is related to the name for Passover which is the religous holiday most linked to Easter (in English we also have Paschal which can refer to both holidays)

It will always confuse me, that people decided to convert away from Polytheism, with all of these interesting gods to tell stories about.