Founded in 1974 under the title, International Conference on Submillimeter Waves and their Applications, today's International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) continues to grow in scope and stature. The conference and its long standing accompanying monthly publication, now known as the Journal of Infrared, Millimeter and Terahertz Waves (JIMT), were among the very first scientific outlets for the burgeoning field of far infrared research. In 2004, the original conference series - by then known as the International Conference on Infrared and Millimeter Waves (IRMMW) - joined up with the International Conference on THz Electronics to form the Joint 29th International Conference on Infrared and Millimeter Waves and the 12th International Conference on Terahertz Electronics (IRMMW-THz 2004). After 2008, the conference name was shortened to the International Conference on Infrared, Millimeter, and Terahertz Waves, keeping the same general acronym: IRMMW-THz 20XX.