How was the first Christian community formed?

The first christians especially after the gifts of tongues Holy Spirit in the upper room in Acts chapter two: Acts4: 32: Now the multitudes of htose who believed were of one heart andone soul; neither did anyone say that any of hte things he possessed was his own, but they had all things in common. And with great power the apostles gave witness to the resurrection of the Lord Jesus. And great grace was upon them. Nor was there any one among them who lacked, for all who were possessors of lands or houses sold them, and brought the proceeds of the things that were sold and laid them at the apostles feet. and they distributed to each as anyone had need.

Don't confuse this with communisistic thinking b/c it's steeped in eveil and not of God. Basically it saying that they were not thinking themselves betther tan anyone else but were a family and a family takes care of eachother. Also read Malachi 3:8-12.