1999-12-01: Acetylsalicylic acid centennial

1999-11-29: Christmas 1984

1999-11-19: Inter-American Development Bank, 40th Anniv.

1999-11-09: America Issue: A New Millennium without Arms

1999-10-29: 125th Anniversary of Universal Postal Union (UPU)

1999-10-27: Luis Antonio Robles, 150th Birth Anniv.

1999-07-23: Pan American Games, 13th Ed.

1999-07-16: Eduardo Zuleta Angel, Birth Cent.

1999-07-04: City of Pamplona, 450 years

1999-06-24: Sovereign Military Order of Malta, 9th Cent.

1999-05-12: Japanese Immigration to Colombia, 70th anniv.

1999-04-16: Turtles

1999-04-16: José Hilario Lopez, 200th Anniv.

1999-03-25: America Issue: Famous women