Sacred Heart School in Tokyo

• 1910（Meiji 43） - Senior high school・Elementary school・kindergarten established
• 1947（Showa 22） - Junior high school reestablished according to Educational reform in occupied Japan
• 1948（Showa 23） - Senior high school established
• 1966（Showa 41） - Senior high school part-time curriculum established
• 1971（Showa 46） - Kindergarten closed
• 1972（Showa 47） - Two semester system established
• 1974（Showa 49） - 5 days per week system established
• 1976（Showa 51） - Senior High School part-time curriculum abolished
• 2008（Heisei 20） - 4-4-4 system established, starting from class entering elementary school this year
• 2012（Heisei 24） - Entry exam for students starting in year 5 of elementary school started.
• 2014（Heisei 26） - Junior High School entry stopped (transition to an integrated school system from Elementary to Senior High School)

From the class starting in 2008, the school transitioned to an integrated school system, dividing school years into 3 stages of 4 years each as follows.^[4]

• First stage: From first to fourth year of elementary school - focusing on fundamental education.
• Second stage: Fifth and sixth years of elementary school, and first and second years of junior high school - focusing on solidifying, mastering and expanding education.
• Third stage: Third year of junior high school and first to final year of Senior high school. - focusing on applying, developing and deepening education.

This change was motivated by wanting to distinguish fifth and sixth year elementary school students, who upon entering puberty begin to enter a different stage of development. Accordingly, these students study alongside junior high school students in the same school building.

• April - Commencement mass
• May - Feast of saint Madeleine Sophie Barat , Coronation of the Virgin
• June - Feast of the Sacred Heart
• July - Third year senior high school students silent meditation camp
• October- Feast of Mater Admirabilis, Sacred Heart festival
• November - Feast of saint Rose Philippine Duchesne
• December - Lily Procession, Christmas wishing
• February - Graduation mass
• March - Thanksgiving mass^[5]

Clubs for the high school are divided into cultural clubs, sports clubs, and performance clubs. Club activities are limited to two times a week. In addition to these clubs, there are circles whose activities are typically conducted during lunch recess.^[6]

• Momoko Abe, Miss Universe Japan 2017
• Empress Michiko, Empress consort of Japan to Emperor Akihito.
• Princess Tomohito of Mikasa
• Hisako, Princess Takamado
• Yasuko Konoe (kindergarten), former member of the Imperial House of Japan
• Okamura Fuku, Catholic nun
• Mieko Kamiya, Doctor
• Kikuko Inoue, Olympic equestrian
• Hidé Ishiguro, philosopher
• Sadako Ogata, diplomat
• Ayako Sono, writer
• Maria Mori, singer and actress
• Yūko Nakagawa, politician
• Akie Abe, Japanese socialite and widow of Shinzo Abe
• Naomi Tokashiki, politician
• Kaori Ishikawa, politician
• Miyako Tanaka, swimmer
• Hitomi Kaneko, classical musician
• Rina Kitagawa, voice actress
• Mariko Oi, BBC reporter

• List of high schools in Tokyo