December 31

Events - Transportation & Infrastructure

1999day.year

The U.S. government hands control of the Panama Canal (as well all the adjacent land to the canal known as the Panama Canal Zone) to Panama. This act complied with the signing of the 1977 Torrijos–Carter Treaties.

The United States transfers control of the Panama Canal Zone to Panama on December 31, 1999, fulfilling the Torrijos–Carter Treaties.
On December 31, 1999, the United States officially handed over the Panama Canal and the surrounding Canal Zone to the Panamanian government. This transfer, stipulated by the 1977 Torrijos–Carter Treaties, ended decades of U.S. administration over the strategic waterway. Panama assumed full responsibility for canal operations, maintenance, and security. The handover symbolized a significant shift in sovereignty and bilateral relations between the two nations. For Panama, control of the canal boosted national pride and opened opportunities for economic development. The event also marked the conclusion of one of the most consequential infrastructure and diplomatic agreements of the 20th century.
Panama Canal Panama Canal Zone Panama Torrijos–Carter Treaties
2004day.year

The official opening of Taipei 101, the tallest skyscraper at that time in the world, standing at a height of 509 metres (1,670 ft).

Taipei 101 opens as the world’s tallest skyscraper at 509 metres, showcasing Taiwan’s architectural and engineering prowess.
On December 31, 2004, Taipei 101 opened its doors as the tallest skyscraper in the world, soaring to 509 meters (1,670 feet) above ground in Taiwan's capital. Designed by architect C.Y. Lee, the tower's innovative bamboo-inspired structure was built to withstand typhoons and earthquakes. The grand opening featured fireworks displays and cultural performances to celebrate Taiwan's engineering achievements. Taipei 101 held the title of the world's tallest building until 2009, drawing millions of visitors eager to ride its record-breaking elevators. The landmark has since become a global icon of modern architecture and a hub for international business and tourism.
2004 Taipei 101 tallest skyscraper