Which Roman emperor abolished the practice of crucifixions?

Thank God for Jesus!

Praise to God for sending His only Son, Jesus, to die for us,so that we may live.

I've not heard of Constantine 1

Player #58960809, It’s a symbol now of Christianity and self-sacrifice.

The Lord God made us all.

Thank to this God fearing man for being led to stop that horrible act

Cookie Bean, different Helen.

Cookie Bean, It was , but probably not this Helen . Remember that the Greeks call their country Hellas and they themselves would be properly called Hellenes. So probably many Greek women would be called Helen

then why other christan religions still use the crucifix in their worship?

got it right somehow!!