A tithe barn was a type of barn used in the Middle Ages for storing the tithes - a tenth of the farm's produce which had to be given freely to the church.
There are many surviving examples of medieval tithe barns in England:
There are still many examples of tithe barns around England.
... Congregationalist Churches are similarly a sub-family of the Reformed churches, historically holding fully Reformed confessions but differing in their form of government. ...