Explaining History on Instagram: "On the 1st of January 2000, celebrations worldwide marked the arrival of the new millennium. Sydney launched the festivities with a spectacular harbor fireworks display, one of the first major events due to its time zone. London illuminated the Thames with fireworks and opened the Millennium Dome. New York’s Times Square saw millions gather for the iconic ball drop and a dazzling light show. Pacific islands like Tonga held traditional ceremonies, while Paris lit