Sects of Christianity

Hello,

There is a question that has been on my mind for a long time. I ask my Christianfriends to answer this question. I am quite curious about the distinction between denominations in the Christian religion. In fact, they all have some common points.

I know that they all have common values, God, Jesus, the Church. How did the sectarian divisions occur when a foundation stone was shared? Why did it occur? I'm curious about these.

I did research on the internet and got the answers to the questions, but when we look at daily life, could the situation be different? I want to know the answer to this.

I am not looking for any ulterior motives for asking these questions sincerely. If my friends, especially those who believe in Christianity but are from different sects, respond to this article, I will have learned the place and functioning of sects in daily life.

Thank you.