Since the Reformation the "Michaelistag" on September 29 has been considered the end of the harvest season, and Erntedankfest with a special church service is celebrated on the first Sunday of October. Beautiful displays, typically of colorful fruit and vegetables as well as grains and breads, are set up before the altar as symbols of gratitude to God. Afterwards all the produce may be donated to the needy. Especially in rural areas, the end of the harvest is cause for lively celebrations.
Through the centuries, villages all over Germany have marked the end of this period of backbreaking work with mirthful festivals that include dances, parades, games, banquets and pageants. They vary from region to region--also by name--depending on the time and type of harvest.
In the wine growing areas the "Winzer Fest" is celebrated with cider, new and old wine, food, and dancing, when the last grapes have been picked. In the Alpine regions grain is brought into barns on big wagons, pulled by decorated oxen. On top of the wagons may be sheaves of grain, bound in the form of a figure, animal or human. The last sheaves are left on the fields so that the next harvest may be plentiful and for animals to glean. In some places these traditions still survive even though modern machinery has hastened the process of bringing in the crops. A harvest is reason to celebrate in (rainproof) festival tents, with music and dancing, food and drink and merrymaking.
In Germany the "Erntedanktag" (literally "Harvest-Thanksgiving-Day") is an official holiday. Harvest Festivals (Erntefests) are celebrated in churches and market places, in homes and dance halls (conduct a search for examples). While the German-speaking countries also observe the principle of separation of church and state "politically", public displays of religious holiday traditions are a part of the local culture, and are as accepted as they are expected and enjoyed by the whole community.