St. Martin's Day calendar. It remains popular today, especially among young people and the rural population. Martinmas celebrates the end of the agrarian year and the beginning of the winter period. Among Estonians, Martinmas also marks the end of the period of All Souls, as well as the autumn period in the Estonian popular calendar when the souls of ancestors were worshiped, a period that lasted from November 1 to Martinmas (November 11). On this day children disguise themselves as men and go from door to door, singing songs and telling jokes to receive sweets. In Southern Estonia, November is called "Märtekuu" after
Great St. Martin Church, Cologne Great St. Martin Church, Cologne The Great Saint Martin Church (, or , ) is a Romanesque Catholic church in Cologne, Germany. Its foundations (circa 960 AD) rest on remnants of a Roman chapel, built on what was then an island in the Rhine. The church was later transformed into a Benedictine monastery. The current buildings, including a soaring crossing tower that is a landmark of Cologne's Old Town, were erected between 1150-1250. The architecture of its eastern end forms a triconch or trefoil plan, consisting of three apses around the crossing, similar to that at St. Maria im Kapitol.