In 2014, ARRL members celebrated 100 years of "Advancing the Art and Science of Radio." Founded in 1914, ARRL is the national association for Amateur Radio in the USA and the largest organization of radio amateurs in the world.

• The ARRL Centennial QSO Party was a year-long operating event that celebrated hams making contacts. Participants accumulated points, working new stations and making new friends all over the world.

• Second Century Campaign: Find out how you can help contribute to the ARRL Endowment and prepare the organization for its second 100 years at  http://www.arrl.org/centennial

• Video: ARRL at 100: A Century of Ham Radio

• ARRL Centennial QSL Cards: Select from 3 specially designed QSL cards celebrating the ARRL Centennial.

In addition to the National Centennial Convention in July 2014, ARRL designated six regional Centennial Events in 2014:

• February 7-9, 2014     Orlando Hamcation—Orlando, Florida

• May 16-18, 2014         Dayton Hamvention®—Dayton, Ohio

• June 6-8, 2014            SEA-PAC—Seaside, Oregon

• June 13-14, 2014        Ham-Com—Plano, Texas

• July 17-19, 2014          National Centennial Convention—Hartford, ConnecticutConvention Program Guide (PDF)

• August 16-17, 2014     Huntsville Hamfest—Huntsville, Alabama

• October 10-12, 2014   Pacificon—Santa Clara, California