Some of the events that Maria has appeared in during the year 1999 are as follows.

1999 01.17	Kakikuke Kikuko no Sasisuse Sonata public recording
1999 03.21	Tokyo Game Show Spring 1999
1999 06.20	Lu puty La puty Hatsubai Kinen Event at Pony Canyon Honsha
1999 07.10	Nanako Kaitaishinsho OAV event in Animate Kyoto
1999 07.10	Nanako Kaitaishinsho OAV event in Hiroshima
1999 07.10	Nanako Kaitaishinsho OAV event in Nagoya
1999 07.18	Grand Prix on Stage
1999 07.20	Nanako Kaitaishinsho event at Ishimaru Soft One
1999 07.20	Nanako Kaitaishinsho event at Yamagiwa Soft
1999 07.24	Nanako Kaitaishinsho event at Animate Ikebukuro
1999 07.24	Nanako Kaitaishinsho event at Yamagiwa Yokohama
1999 07.24	Tokyo Character Show 1999
1999 09.05	Shiawase Croissant talk show in Shinseido Disk Inn
1999 09.18	Tokyo Game Show 99 Autumn
1999 09.19	Tokyo Game Show 99 Autumn
1999 10.10	Maria TV event
1999 10.30	Yamamoto Maria talk live in Aoyama Gakuin
1999 12.19	Shiawase Croissant Christmas Live
1999 12.27	Anime Kouhaku Utagassen
1999 12.27	Anime Kouhaku Utagassen Uchiage Daihousou Party