TEXT MESSAGES WILL NOT BE ANSWERED OR SENT. The millennium celebrations were a worldwide, coordinated series of events to celebrate and commemorate the end of 1999 and the start of the year 2000 in the Gregorian calendar. The celebrations were held as marking the end of the 2nd millennium and the 20th century, and the start of the 3rd millennium and the 21st century. “”DO NOT”” CALL BEFORE 8 am. OR AFTER 9:00 pm. CASH ONLY. PICKUP ONLY VIEW MAP for general location. View poster's list for this Seller's other Items.