2001: JULY - POSTMORTEM band is set up with: Pawel "Pewex" Domaradzki - drums, and Szymon Stepkowski - guitar. 14 AUGUST - T - Rex, a former Price of Death guitarist joins the band. 20 AUGUSY - Sebastian "Saper" Kurzawski joins the band. It's the official beginning of the band. 10 NOVEMBER - the band changes its name into DELIOS.
2002: 13 JANUARY - the band takes part in the 10th Final of Wielka Orkiestra Swiatecznej Pomocy in Gorzˇw Wlkp., with Acid Drinkers amongst all the bands. 16 JANUARY - a concert in high school no IV in w Gorzˇw. 1 FEBRUARY - a concert in Skwierzyna. 23 FEBRUARY - a concert in Magnat club in Gorzˇw. 23 MARCH - the band takes part in Gorzowski Rock Festiwal 2002 in MCK Chemik. "Pewex" gets a prize for the best drummer. 11 JUNE - a concert in MCK Chemik w Gorzˇw. 19 JUNE - a concert in high school no IV in w Gorzˇw. 10 JULY - Saper leaves the band. 13 JULY - Remik takes the place of Saper. 20 AUGUST - a concert on the occasion of the 1st DELIOS foundation anniversary - Gorzˇw Wlkp., (Magnat club). 22 AUGUST - Remik leaves DELIOS. 21 SEPTEMBER - a concert in Lubniewice (Pub Brat); (Remik plays the bass guitar). 19 OCTOBER - Saper returns to the band. 23 OCTOBER - a concert in high school no IV in w Gorzˇw. 25 OCTOBER - the band gives an interview for Ziemia Gorzowska, it appears on 14. 11. 2002. 26 OCTOBER - a concert in Lubniewice (Pub Brat). 6 DECEMBER - a concert in MCK Chemik (Gorzˇw Wlkp.).
2003: 20 JANUARY - 15 FEBRUARY the band records a demo (Individual life) in MDK and SM studio in Gorzˇw. 29 MARCH - the band takes part in Gorzowski Rock Festiwal 2003 in MCK Chemik. 30 APRIL - a concert in high school no IV in w Gorzˇw ( with Napalm Life ). 17 JUNE - a concert in MCK Chemik in Gorzˇw, Rock nad Warta with the prizewinners of Gorzowski Rock Festiwal: Mortal Sanctuary (Miedzychod); Kombajn Do Zbierania Kur Po Wioskach (Swiebodzin); Hot Rain (Szczecin); Projekt GT (Trzebiatˇw); Kawalek Kulki (Gorzˇw). 26 JULY - a concert at Night Riders rally in Dobiegniew. 20 AUGUST - the 2nd DELIOS foundation anniversary in Magnat cub in Gorzˇw Wlkp. Special guest - Mortal Sanctuary. 18 OCTOBER - a concert in MCK Chemik in Gorzˇw with Mortal Sanctuary, Bunder, Nekromunda 12 DECEMBER - a concert in high school no IV in w Gorzˇw. ( with Napalm Life ). 29 DECEMBER - a concert in 13 Posterunek with Bloodthirst (Pozna˝) and Sullen Rain (Gorzˇw).
2004: 21 FEBRURARY - recording of the new demo tracks in MDK Gorzˇw. 6 MARCH - a concert with Kurator , Dreary Mover - Pozna˝ (U Bazyla club) 27 MARCH - the band takes part in Rock Festiwal 2004, Gorzˇw (MCK Chemik). DELIOS wins the audience prize and gets into finals. 24 APRIL - a concert with Mortal Sanctuary, Carpe Noctem, Devotion - Miedzychˇd (MDK). 22 MAY - the band takes part in the final concert of Rock Festiwal 2004 - Gorzˇw (the amphitheater in Gorzˇw ), with Brygada Kryzys amongst all the bands. 12-13 JUNE - The Antichrist album is finished. 9 AUGUST - Remik takes the place of Saper. 20 AUGUST - a concert on the occasion of the 3rd DELIOS foundation anniversary; guests: Cier˝, Price of death, Bunder, Nekromunda - Gorzˇw (Magnat club). 22 OCTOBER - Grind Manifesto 2004 Gorzˇw (Magnat club) a concert with Bunder Nekromunda, Third Degree, Blood I Bleed 3 DECEMBER - a concert in Kalisz (Pub pod Muzami) with Exarhat 29 DECEMBER - a concert on Totally Insane Fest (MCK Gorzˇw)
2005: 25 FEBRUARY - a concert on the occasion of the 6th Bloodthirst foundation anniversary (Delios, Necrocult, Ebola, Throneum, Bloodthirst) - Pozna˝, U Bazyla club 16 APRIL - the band takes part in Rock Festiwal 2005, Gorzˇw (MCK Chemik.). DELIOS wins the audience prize again 17 APRIL - a Rock Festiwal final concert - Delios supports KSU, Gorzˇw. (MCK Chemik). 9 JULY - a concert in Mierzy˝ k/Miedzychodu. JUNE - three members in the band (T-Rex, Remik, Pewex). 15 JULY - a concert in Gorzˇw Wlkp. - Pub Amsterdam. 17 JULY - a concert in Gorzˇw Wlkp. - Magnat club (Delios, Mortal Sanctuary, Yattering), YATTERING - cancelled the gig out of personal reasons. AUGUST - all the band members are back together. 13 DECEMBER - a concert in Gorzˇw. (MCK Chemik).
2006: 8 JANUARY - a concert with WOSP - Witnica. 8 JANUARY - a concert with WOSP - Kamie˝ Maly. 10 FEBRUARY - a concert in Gorzˇw Wlkp. - Dekoratornia club (Electric Ship, Last Mochicans, Eyesore, Delios). 8 APRIL - the band takes part in Rock Festiwal 2006, Gorzˇw. (MCK Chemik). 25 APRIL - a concert within THRASH REVOLUTION TOUR 2006 (Delios, Panzer-Faust, Monastery, Egzekuthor) - a concert in Gorzˇw Wlkp. - Magnat club.