Pre-Christian roots
Historically, there has been opposition to the custom of the Christmas tree because of its pagan origins. In 1851, parishioners in Cleveland, Ohio, condemned as a pagan practice the actions of the pastor, Henry Schwan, for decorating one of the earliest Christmas trees in an American Christian church



as you can se the sourse is the international wikipedia

https://en.wikipedia.org/wiki/Christmas_tree

you can see this site too
because all christianity is from pagan origin
for english open this site

https://www.religioustolerance.org/chr_jcpa1.htm

if you can speak arabic open this site
https://www.ebnmaryam.com/vb/t15683.html

جزاكي الله خير الجزاء و زادك في العلم بسطة

no problem
welcome any time my friend
its my pleasure to help you
and remember if you need any information
i would be glad to help you if i can

thank you

Recommended Reading

Salamualykum brothers and sisters
I just joined and this is my first post

Concerning the Pagan practices of Christianity , I can go forever on this ! the sacraments , the church , the cross....etc for starters I recommend this book :

"Pagan Christianity"
By Frank Viola
https://www.mediafire.com/?eak2zywtjmj

This book isn't really a book that deals with the pagan origins of christian dogmatic beliefs like the deity of Jesus , it deals souly on the PRACTICES , like christmas , easter and the sacraments.

Frank exposes all of the pagan origins of these practices that go on in christiandom and the church.

What makes this book really special is that Frank is a christian minister , and he calls for the elemination of these practices from christianity , therefore you can be sure that this book isn't written by some hateful athiest like many christians like to argue everytime we mention a source .

I hope this is useful