From BibleGateway.com
Colossians 2:16 (New Living Translation)
So don’t let anyone condemn you for what you eat or drink, or for not celebrating certain holy days or new moon ceremonies or Sabbaths.
Acts 20:7 (King James Version)
And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight.
From Wiki's article: Circumcision controversy in early Christianity
The first Christian Church Council in Jerusalem[1], held in approximately 50 AD, decreed that circumcision was not a requirement for Gentile converts. This became known as the "Apostolic Decree"[2] and may be one of the first acts differentiating Early Christianity from Judaism.[3] At roughly the same time Rabbinic Judaism made their circumcision requirement for Jewish boys even stricter.[4]
http://en.wikipedia.org/wiki/Circumcision_controversy_in_early_Christianity
The Council in Jerusalem was attended by Peter, the other apostles, Paul, the elders, and James. See the
Book of Acts chapter 15.