Team B is AKB48 3rd Team. Currently (September 2019) the team has 21 members and Iwatate Saho is the captain.
2006[]
- November - 20 girls out of 12,828 applicants passed the auditions for the 3rd Generation. Only 19 were selected for the 3rd Generation Candidates.
- December 3 - AKB48's third sub-group, "Team B", was established.
- December 9 - 18 candidates of Team B were first introduced during AKB48 First Anniversary Live! Seizoroidaze "A" "K" "B"! The candidates were Inoue Naru, Ota Aika, Kashiwagi Yuki, Katayama Haruka, Kikuchi Ayaka, Saotome Miki, Tanabe Miku, Nakagawa Haruka, Nakaya Sayaka, Noguchi Reina, Matsuoka Yuki, Yonezawa Rumi, Watanabe Mayu, Iso Reina, Otsuka Aki, Sakata Ryo, Fujishima Mariachika, and Horie Mina
2007[]
- April 8 - Shonichi of Team B 1st Stage
- October 2 - Watanabe Shiho graduated from AKB48
- October 10 - Senshuuraku of Team B 1st Stage
- October 7 - Shonichi of Team B 2nd Stage
2008[]
- February 21 - Senshuuraku of Team B 2nd Stage
- March 1 - Shonichi of Team B 3rd Stage
- August 15 - Kikuchi Ayaka graduated from AKB48
- September 29 - Inoue Naru graduated from AKB48
2009[]
- February 1 - Noguchi Reina and Matsuoka Yuki graduated from AKB48
- February 1 - Senshuuraku of Team B 3rd Stage
- February 8 - Shonichi of Team B 4th Stage
- April - Saotome Miki graduated from AKB48
- August 23 - Saeki Mika graduated from AKB48
- August - Team Shuffle (Kashiwagi Team B)
- Kashiwagi Yuki choosen as captain of the Team.
- Kobayashi Kana, Masuda Yuka, Oku Manami, Chikano Rina, Sato Natsuki, Kasai Tomomi, Sato Amina, Kitahara Rie, and Miyazaki Miho transfered to Team B
- Oota Aika, Nakaya Sayaka, Nakagawa Haruka, Katayama Haruka, Sashihara Rino transfered to Team A
- Nito Moeno, Yonezawa Rumi, Nakatsuka Tomomi, Kohara Haruka, Tanabe Miku transfered to Team K
- Urano Kazumi transfered to SDN48
- Ishida Haruka, Sato Sumire, Suzuki Shihori, Komori Mika promoted
2010[]
- April 16 - Senshuuraku of Team B 4th Stage
- May 21 - Shonichi of Team B 5th Stage
2011[]
- February 20 - Oku Manami graduated from AKB48
2012[]
- January 27 - Hirajima Natsumi graduated from AKB48
- March 24 - Watanabe Miyuki choosen as temporary member of Team B
- August 24 - Tokyo Dome Team Shuffle (Umeda Team B)
- Umeda Ayaka choosen as captain of the Team
- Suzuki Mariya transferred to SNH48 (Transferred Members)
- Ishida Anna transferred to AKB48
- October 20 - Senshuuraku of Team B 5th Stage
2013[]
- February 1 - Minegishi Minami demoted to Kenkyuusei
- April 28 - Omori Miyu promoted to Team B
- Ishida Anna's concurrent position in Team B revoked
- Takajo Aki to have concurrent position in Team B
- June 3 - Komori Mika graduated from AKB48
2014[]
- February 24 - AKB48 Group Daisokaku Matsuri (Kuramochi Team B)
- Kuramochi Asuka choosen as the captain of the Team
- Oya Shizuka choosen as the vice-captain of the Team
- Owada Nana and Fukuoka Seina promoted
- Ikoma Rina and Tomonaga Mio to have concurrent positions in Team B
- Watanabe Miyuki's concurrent position revoked
- Izuta Rina, Uchiyama Natsuki, Umeta Ayano, Oshima Ryoka, Kuramochi Asuka, Takahashi Juri, Hashimoto Hikari, Hirata Rina and Watanabe Mayu transferred to Team B
- Katayama Haruka, Kojima Natsuki, Kojima Haruna, Shimazaki Haruka and Nakamura Mariko transferred to Team A
- Ishida Haruka, Iwasa Misaki and Nonaka Misato transferred to Team K
- Omori Miyu and Kato Rena transferred to Team 4
- Yamauchi Suzuran transferred to Team S
- Oba Mina transferred to Team KII
- Fujie Reina transferred to Team M
- Ichikawa Miori and Umeda Ayaka transferred to Team BII
- Ogasawara Mayu and Nozawa Rena transferred to AKB48 (Team B)
- April 22 - Nonaka Misato graduated from AKB48
- April 23 - Senshuuraku of Team B 1st Waiting Stage
- April 28 - Shonichi of Team B 3rd Stage's Revival
2015[]
- March 26 - AKB48 Spring Shuffle 2015 (Kizaki Team B)
- Kizaki Yuria choosen as the captain of the Team
- Oshima Ryoka choosen as the vice-captain of the Team
- Sakaguchi Nagisa, Yabuki Nako and Watanabe Miyuki to have concurrent positions in Team B
- Ikoma Rina's concurrent position revoked
- Uchida Mayumi, Iwasa Misaki, Kato Rena, Kizaki Yuria, Kobayashi Kana, Kobayashi Marina, Tatsuya Makiho and Goto Moe transferred to Team B
- Oya Shizuka, Owada Nana, Ogasawara Mayu and Hirata Rina transferred to Team A
- Takajo Aki transferred to Team K
- Izuta Rina, Kawamoto Saya, Takahashi Juri, Tomonaga Mio, Natori Wakana and Nozawa Rena transferred to Team 4
- July 7 - Hashimoto Hikari graduated from AKB48
- August 17 - Kuramochi Asuka graduated from AKB48
- August 27 - Senshuuraku of Team B 3rd Stage's Revival
- December 26 - Shonichi of Team B 6th Stage
2016[]
- January 31 - Uchiyama Natsuki graduated from AKB48
- February 21 - Ma ChiaLing promoted
- March 14 - Iwasa Misaki graduated from AKB48
- March 31 - Kobayashi Kana graduated from AKB48
- August 8 - Watanabe Miyuki graduated from AKB48
2017[]
- March 22 - Umeta Ayano graduated from AKB48
- June 5 - Yokoshima Aeri graduated from AKB48
- June 8 - Oshima Ryoka graduated from AKB48
- June 23 - Tanabe Miku graduated from AKB48
- September 27 - Nishikawa Rei and Yamabe Ayu promoted
- September 30 - Kizaki Yuria graduated from AKB48
- December 8 - AKB48 Team Shuffle 2017 (Takahashi Team B)
- Iwatate Saho, Ota Nao, Oya Shizuka, Okuhara Hinako, Kashiwagi Yuki, Kawahara Misaki, Kitazawa Saki, Kubo Satone, Kojima Natsuki, Sasaki Yukari, Sato Akari, Sato Shiori, Shimizu Maria, Takahashi Juri, Takita Kayoko, Takeuchi Miyu, Taniguchi Megu, Nakanishi Chiyori, Hattori Yuna, Hiwatashi Yui, Fukuoka Seina, Honda Hitomi, Yamabe Ayu, Yamamoto Ruka, Yoshikawa Nanase, Watanabe Mayu
- Takahashi Juri choosen as the captain of the Team
- Ota Nao, Okuhara Hinako, Kawahara Misaki, Sato Akari, Sato Shiori, Shimizu Maria, Hattori Yuna, Honda Hitomi, Yamamoto Ruka and Yoshikawa Nanase to have concurrent positions in Team B
- Yabuki Nako's concurrent position revoked
- Iwatate Saho, Oya Shizuka, Kitazawa Saki, Kubo Satone, Kojima Natsuki, Sasaki Yukari, Takahashi Juri, Takita Kayoko, Taniguchi Megu, Nakanishi Chiyori and Hiwatashi Yui transferred to Team B
- Kato Rena, Goto Moe and Nishikawa Rei transferred to Team A
- Sakaguchi Nagisa, Tatsuya Makiho and Ma ChiaLing transferred to Team 4
- Iwatate Saho, Ota Nao, Oya Shizuka, Okuhara Hinako, Kashiwagi Yuki, Kawahara Misaki, Kitazawa Saki, Kubo Satone, Kojima Natsuki, Sasaki Yukari, Sato Akari, Sato Shiori, Shimizu Maria, Takahashi Juri, Takita Kayoko, Takeuchi Miyu, Taniguchi Megu, Nakanishi Chiyori, Hattori Yuna, Hiwatashi Yui, Fukuoka Seina, Honda Hitomi, Yamabe Ayu, Yamamoto Ruka, Yoshikawa Nanase, Watanabe Mayu
2018[]
- May 16: Kojima Natsuki graduated from AKB48
- December 8: Omori Maho promoted
- December 25: Takeuchi Miyu graduated from AKB48
2019[]
- May 2: Takahashi Juri graduated from AKB48
- June 8: Sato Shiori graduated from AKB48
- September 7: Saito Haruna and Otake Hitomi promoted
