Isaac Glendening and Matthew Cargil formed Cesium_137 in 1998. Experimenting with various forms of dance music and making an effort to generate new tones within their compositions, the duo began performing at various underground nightspots in their native Philadelphia area.

Their first single, 'The Fall,' became a dance floor hit. Comprised of remixes by several underground artists, this single took them back to Tom Shear with his remix of 'Language without Lies.' That song, and 'The Fall (edit)' made Side-Line magazine dub their music 'a revelation' in the field of EBM.

Metropolis Records released the out of print The Fall EP as a digital only release