North American Wildlife Sheet
On June 13, 1987, the North American Wildlife sheet became the third US 50-stamp se-tenant. It was also the third stamp issue with a First Day ceremony outside of the US, in Canada.
Stamp Expositions
Opening of INTERPHIL ’76
On May 29, 1976, the Seventh US International Philatelic Exhibition (INTERPHIL) opened to the public. Celebrating the American Bicentennial, the show had more than 75,000 visitors.
World Stamp Show 2016
On May 28, 2016, the doors opened on America’s 11th International Stamp Exhibition, World Stamp Show 2016. It marked the show’s return to New York after 60 years.
Opening of FIPEX
The Fifth International Philatelic Exhibition (FIPEX) opened its doors to a record 60,000 visitors on April 28, 1956.
First U.S. Triangle Stamps
On March 13, 1997, the USPS issued its first triangle-shaped stamps to promote the upcoming Pacific ’97 Stamp Show.
World Stamp Expo 2000
World Stamp Expo 2000 opened on July 7, 2000. Several US postal firsts were issued during the show, including the first round, pentagonal, and holographic stamps.
Opening of CIPEX
On May 17, 1947, doors opened on the Centenary International Philatelic Exhibition in New York City. It celebrated the 100th anniversary of America’s first postage stamps with reproductions of America’s first two stamps.
Opening of AMERIPEX ‘86
America’s eighth International Philatelic Exhibition opened to the public on May 22, 1986, in Chicago, Illinois. It was also the first to be held in the Mid-West.
20th Universal Postal Union Congress
On November 13, 1989, the 20th Universal Postal Union Congress opened in Washington, DC. It was the first time the Congress convened in the US since 1897.