system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did we get from Jesus dying on the cross to a giant rabbit hiding colored eggs for Easter?
gpt
Actually, it went from rabbits and eggs to Jesus, not the other way around.

Many pre-Christian religions had spring festivals celebrating rebirth and fertility, symbolized by eggs and rabbits.  The word Easter itself comes from such a festival.  

When Europe was Christianized, rather than banning the old religious festivals, it was often easier to co-opt them and give them a Christian meaning.  That's part of the reason Easter occurs after the first full moon after the equinox, rather than on a fixed day.