The group came into being in Debica, a small town in the south of Poland, in early autumn 1998. It was started by Aleksander Koziol (guitar) and Jan Trebacz (vocals, guitar). The band's goal from the very start was to play heavy music with a positive message. Their first live performance took place in November 1999 at a local festival.

Illuminandi recorded two demos; 'Demo I' (four tracks) in 2000 and Demo II (3 tracks) in 2002. Demo II caused some stir in the underground press and eventually got the band signed to Bombworks Records, who in 2005 released the two demos together with a couple of live tracks on one CD entitled The Beginning.

Since Illuminandis style was gradually developing towards the darker, metal edge, it soon became evident for the band that they needed someone to handle the aggressive vocals. Thus Rajmund "Melon" Jelen reinforced the band with his powerful growls and screams.

It was in this line-up that Illuminandi recorded their 5-song EP entitled Illumina Tenebras Meas. This Latin title means Illuminate My Darknes. Initially, the MCD was to include 4 songs in Polish and one in English, but the band decided to re-record the Polish tracks in English. Thus, the MCD consisted of both Polish and English versions of the songs. The tracks were varied, the production better than ever before.

Having undergone some line up changes, the band finished recording the album "In Via" (Latin for "On the Way") in December 2009. The band has just signed to an independent Polish label Ars Mundi. The new album will consist of 9 tracks + intro + an instrumental interlude. It will be released in May 2010.

Prepare for an intense mixture of crushing guitar riffs, pounding bass, raging drums, soothing sounds of cello and violin, powerful growls and screams and emotional clean vocals. You can call it folk metal, gothic metal, symphonic metal, hardcore or death metal, but its simply Illuminandi.