- 1998-01-00 Earl Grey forms
- 1998-07-00 G. ZiLL joins.
- 1998-08-00 B. HEKIRU (碧流) joins.
- 1998-08-00 【lineup】 V. Yukito / G. ZiLL / Syn G. MIKA / B. HEKIRU / D. Yu~go
- 1999-04-00 Earl Grey temporarily pauses activities.
- 1999-04-00 Earl Grey temporarily pauses activities
- 1999-07-02 Earl Grey resumes activities at Urawa (浦和) Narciss.
- 2000-04-19 VAMPIRE released.
- 2000-06-17 BUTTERFLY released.
- 2000-07-02 Rakuen Chuudoku released.
- 2000-10-30 Earl Grey indefinitely stops activities after live at Ichikawa (市川) CLUB GIO.
- 2000-10-30 Earl Grey indefinitely stops activities
- 2000-12-09 Punishment Party Vol. 1 released.
- 2001-02-01 Earl Grey joins Matina sublabel Eternal and resumes activities at Machida (町田) The Play House.
- 2001-02-23 Tour, Kantou ZONE Shuuchuu CIRCUIT “NIF” (関東ZONE集中CIRCUIT “NIF”), begins.
- 2001-04-30 Tour, Marchentic Horror “Yurikago wo Yurasu Aoi DRESS no Rouningyou” (Marchentic Horror “ゆりかごを揺らす青いドレスの蝋人形”), begins at Machita (町田) PLAY HOUSE.
- 2001-05-21 Marchentic Paradox released.
- 2001-06-02 Release celebration sponsored event, Marchentic Horror Show, is held at Meguro ROCKMAYKAN (目黒鹿鳴館). An unknown present is freely distributed to attendees.
- 2001-06-20 THROUGH ALL ETERNITY released.
- 2001-06-29 Tour final is held.
- 2001-06-29 Marchentic Paradox 2nd PRESS released.
- 2001-10-13 Sponsored event, Marchentic Horror Show -Dainishou- (Marchentic Horror Show -第二章-), is held at Takadanobaba (高田馬場) CLUB PHASE.
- 2001-11-16 Sponsored event is held at Urawa (浦和) Narciss.
- 2001-11-28 GEEKS released.
- 2001-12-20 First oneman, GEEKS PARTY, is held at Meguro ROCKMAYKAN (目黒鹿鳴館).
- 2001-12-20 Misshitsu Hakuchuumu released.
- 2002-01-19 Due to popular demand, first free oneman, GEEKS PARTY DIRECTORS CUTban (GEEK PARTY ディレクターズカット版), is held at Urawa (浦和) NARCISS.
- 2002-01-19 GEEKS PARTY DIRECTORS CUTban released.
- 2002-03-00 Earl Grey pauses activities
- 2002-03-17 Bassist HEKIRU graduates during live at Shizuoka (静岡) Sunash, and Earl Grey indefinitely pauses activities.
- 2002-04-23 Earl Grey holds secret live (despite being on activity pause) at Machida (町田) The Play House.
- 2002-05-10 Earl Grey restarts activities at Takadanobaba (高田馬場) AREA with 4-member lineup.
- 2002-05-10 【lineup】 V. Yukito / G. ZiLL / Syn G. MIKA / D. Yu~go
- 2002-06-06 Tour LiveRockinHorrorShow begins
- 2002-08-00 Synth guitarist MIKA secedes
- 2002-08-00 【lineup】 V. Yukito / G. ZiLL / D. Yu~go
- 2002-09-00 【lineup】 V. Yukito / G. ZiLL / G. RYU / D. Yu~go
- 2002-09-00 Guitarist RYU joins
- 2002-09-06 Various lives are suddenly cancelled: 2002-09-14 at Ikebukuro (池袋) CYBER / 2002-09-17 at Meguro (目黒) ROCKMAYKAN (鹿鳴館) / 2002-09-20 at Yokohama (横浜) ARENA SOUND HALL / 2002-10-04 at Meguro (目黒) ROCKMAYKAN (鹿鳴館) / 2002-10-14 at Yokohama (横浜) ARENA SOUND HALL / and 2002-11-07 at Takadanobaba (高田馬場) AREA. Earl Grey will instead disband after their 2002-11-03 oneman live.
- 2002-11-03 Last live oneman is held at Urawa (浦和) Narciss.
- 2002-11-03 Earl Grey disbands
- 2002-11-03 Untitled released.
- 2002-12-05 Barrier Crash (※cancelled) released.
- 2003-05-01 KALEIDOSCOPE released.
- 2003-10-20 “Earl Grey one-day revival?!” is advertised to appear at live event, cheerful presents vol.1, at Takadanobaba (高田馬場) AREA. ex-Earl Grey guitarist Zill holds a talk at the event. ex-Earl Grey member(s) also participate in a session band―2, 3 Nin no Hakushaku, Gogo no Koucha ni Satou 4tsu。 (2、3人の伯爵、午後の紅茶に砂糖4つ。)―with Sugar Trip member(s); exact lineup is unknown.
- 2004-02-07 Earl Grey holds one-day revival with full lineup at event, cheerful presents vol.2, at Takadanobaba (高田馬場) AREA. An unknown present is freely distributed to those who purchase tickets through the band.
- 2006-04-29 Earl Grey holds one-day revival at event, cheerful presents vol.23, Takadanobaba (高田馬場) AREA.