Did God or Jesus die on the cross, and what significance does this event hold in Christianity"?

In Christianity, Jesus died on the cross, not God. This event, known as the crucifixion, is significant because it is believed to be the ultimate sacrifice made by Jesus to atone for the sins of humanity. It is seen as a demonstration of God's love and mercy towards humanity, offering salvation and the promise of eternal life to those who believe in Jesus as their savior.