text: The Apostolic Age [33 - 100] AD---had Christians gathering together in each others' homes to celebrate THE MEAL.  The people elected their presiders [and that included bishops until almost the conclusion of the first 1000 years].  Bishops were not at all gatherings of Christians.  Your reference to can. 900.1---is TODAY's Canon.  There was NO CANON LAW in the very early church [first complete collection of Canon law was 1917]  The people celebrated the Eucharist---in Jerusalem and around Palestine, just as we do today.
  
  
  Secondly, nowhere do we have any indication that the original TWELVE [including Matthias] laid hands on anyone to anoint them as bishop.  Paul did, and Paul considered himself as both a deacon and an apostle.  Paul anointed both Timothy and Titus---but we have no indication that he anointed others.