There are a few Christian communities that claim they are the "One True Church". Some of these ecclesial communities and Churches don't consider others as Christians if they are not part of their Church. Some consider other Christians as "separated brothers".
For reference purposes (and as a seed for common questions related to this topic), which Christian communities claim that they are the "One True Church", the fullest expression of the Christian faith, the proclaimers and keepers of the Truth of God? Please indicate the year when these communities have made that claim with references where possible. The answer with the most complete list of communities, years and references, will be accepted.
I am only asking for a listing, and not for answers, comments or discussions about why these communities believe this.