What forms of public announcements were used in medieval times?

Answer 1

Town criers made announcements in towns and cities. People who wanted to announce things for themselves commonly put up a paper on the door of a public building, such as a church, as Martin Luther did with the 95 theses. Reeves on manors were responsible for communications between the lord and the serfs, and would probably have made many announcements. Local church leaders announced things having to do with the church. Bells were used as warnings and to call people. If the animals got into the wrong fields, horns were used.