6,000 YEARS OLD CALENDAR

The oldest known calendar in Europe so far is 6,000 years old and is on a display in the Regional Museum of History in the South Bulgarian city of Kyustendil. The calendar is depicted on the base of a clay model of a furnace. It tracks the days in one lunar month and the months in one solar year.

The calendar was found near the South-West Bulgarian town of Dupnitsa, in the village of Slatino, where a settlement from the Copper and Stone Age was discovered. The calendar dates back 5,000 years BC. It is a table inscribed on the base of a clay model ofa furnace.

The ancient people observed the changes in the position of celestial bodies and the day and night cycle, so they felt the need to measure the cycles and thus created the first calendars, the officials of the museum in Kyustendil explained.