SDN48 History

2009

May

• 6 – SDN48 auditions starts. Only women above 20 can apply.

July

• 17 – Noro Kayo and Ohori Megumi are announced as the first members (Kennin)

August

• 1 – SDN48 1st Stage - “Yuuwaku no Garter" Shonichi (Theater Debut)
  • 1st generation debuts with 17 members: Nakazato Ayami, Ito Kana, Akita Kazue, Imayoshi Megumi, Umeda Haruka, Okouchi Misa, Kaida Juri, Kato Mami, Kouchi Masami, Kondo Sayaka, Serina, Chen Qu, Nachu, Nishikunihara Reiko, Hatakeyama Chisaki, Mitsui Hiromi, Iwata Yuki.
• 23 – AKB48's 2009 Team Shuffle
  • Noro Kayo, Ohori Megumi, Urano Kazumi and Sato Yukari transferred from AKB48. Noro Kayo appointed as captain.

September

• 22 – Kohara Haruka is transferred from AKB48.
• 24 – Iwata Yuki graduates due poor health.

December

• 01 – Tezuka Machiko is transferred from SKE48
• 24 – Nakazato Ayami graduates from SDN48

2010

August

• 1 – SDN48 1st Anniversary: 2nd generation debuts with 16 members
  • Fukuyama Sakura, Ninomiya Yuka, Tanisaki Tomomi, Aikawa Yuki, Akiko, Ito Mana, Oyama Aimi, Kimoto Yuki, KONAN, Takahashi Yui, Tsuda Marina, Natsuko, Fukuda Akane, Fujikoso Yumi, Hosoda Miyuu, Matsushima Rumi.

September

• 30 – Fukuyama Sakura graduates due health problems.

November

• 17 – SDN48 performs in South Korea.
• 24 – GAGAGA, SDN48’s 1st single, is released.

2011

Febuary

• 10 – Ito Kana graduates due poor health

March

23 – Ai, Chuseyo, SDN48’s 2nd single, is released

May

• 12 – Ninomiya Yuka graduates to become a actress.
• 27 – Minogashita Kimitachi e ～AKB48 Group Zenkouen～: 3rd generation debuts with 7 members
  • Hayakawa Sayo, Kojo Seara, Komatani Hitomi, Shinahama Saemi, Siyeon, Tojima Hana, miray
• 29 – Tanisaki Tomomi graduates from SDN48

July

• 28 – Hayakawa Sayo graduates from SDN48

August

• 17 – MIN・MIN・MIN, SDN48’s 3rd single, is released.

December

• 28 – Kudokinagara Azabu Juuban duet with Mino Monta, SDN48’s 4th single, is released.

2012

March

• 07 – Makeoshimi Congratulation, SDN48’s 5th and last single is released.
• 14 – NEXT ENCORE, SDN48’s 1st album, is released.
• 28 – SDN48 1st Stage Senshuuraku
• 31 – SDN48 ends with a farewell concert and the graduation of all members.

May

• 15 – Minogashita Kimitachi e 2 ～AKB48 Group Zenkouen～: SDN48 reunites to perform a revival of their stage.

2013

January

• 27 – SDN48 makes special apparence at the AKB48 Request Hour to perform Kodoku na Runner.

March

• 31 – SDN48 reunites once again at the AKB48 Theater to celebrate the 1 year of their graduation.

May

• 25 – Omoidaseru Kimitachi e ～AKB48 Group Zenkouen～: SDN48 reunites to perform a revival of their stage.