No foods are officially forbidden by Christianity.
IN THE 18TH CENTURY
Icons were thought to be a use of worship forbidden by God.
By the time of the fall of the Western Empire, Christianity was well established as the state religion and other religions were forbidden. Naturally, there was no prohibition on Christianity, and persecution of non-Christians was accepted practice.
Sex before marriage, abortion
Because it's part of their religion. since it is forbidden in Islam as it is forbidden in Jewish and Christianity.
St. Cecilia was killed because she was a christian at times when Christianity was forbidden.
Christianity today is practiced all over the world, though in many countries it is practiced in secret because it is forbidden by the government.
true. If any christians were found they would be persecuted
Yes it was banned during the Edo period by Tokugawa Ieyasu. Any christians there were persecuted.
It hasn't. In countries where it is forbidden the underground churches thrive. People may turn away from it as is their choice but it will not die.
Think of the 10 commandments. All of them are haram (forbidden) in both Islam and Christianity.