1222: February 16 Nichiren Daishonin is born in Kominato, Japan.
1253: April 28 Nichiren first chants Nam-myoho-renge-kyo.
1260: July 16 Nichiren submits his treatise "On Establishing the Correct Teaching for the Peace of the Land."
1260: August 27 Matsubagayatsu Persecution. Incited by priests, Pure Land believers descend on the Daishonin's hermitage at Matsubagayatsu, to kill him. He is forced to flee for his life.
1261: May 12 Izu Exile. Nichiren is banished by the Kamakura shogunate to Ito in Izu Province, Japan.
1264: November 11 Komatsubara Persecution. Nichiren is attacked by swordsmen led by the lord of the region. He receives a slash on his forehead and has his left hand broken, but his followers help him escape.
1271: September 12 Tatsunokuchi Persecution. Nichiren, who is about to be beheaded by government troops, is saved when a flash of light in the night sky frightens the executioners away. The government later decides to exile him to Sado Island.
1279: October 12 Nichiren inscribes the Dai-Gohonzon for all humanity.
1282: October 13 Writes a transfer document at Ikegami, designating Nikko as chief priest of Kuon-ji temple at Minobu, and shortly afterward passes away.
1282: October 13 Nichiren dies.
1871: June 6 Tsunesaburo Makiguchi, the Soka Gakkai's first president, is born.
1900: February 11 Josei Toda, the Soka Gakkai's second president, is born.
1928: January 2 Daisaku Ikeda, President of the Soka Gakkai International, is born.
1930: November 18 Soka Gakkai Founding Day. Soka Gakkai is established.
1944: November 18 Tsunesaburo Makiguchi, the Soka Gakkai's first president, dies in prison. 1945: July 3 Day of Mentor and Disciple President Josei Toda is released from Toyotama Prison. (1957: Daisaku Ikeda is arrested in 1957 in Osaka on false charges.)
1947: August 24 Daisaku Ikeda joins the Soka Gakkai at age 19. SGI-USA Men's Division Day
1951: May 3 Soka Gakkai Day Josei Toda inaugurated as the second Soka Gakkai president. (1960: Daisaku Ikeda inaugurated as third Soka Gakkai president.)
1951: July 11 Young men's division established.
1951: July 19 Young women's division established.
1957: September 8 President Josei Toda makes a declaration against the use of nuclear weapons.
1958: March 16 Kosen-rufu Day More than 6,000 youth attend a ceremony at the head temple where President Josei Toda passes responsibility for the spread of the Nichiren's Buddhism to all youth division members.
1958: April 2 Josei Toda, the Soka Gakkai's second president dies.
1960: May 3 Soka Gakkai Day Daisaku Ikeda inaugurated as the third Soka Gakkai president.
1960: October 2 World Peace Day President Ikeda lands in Hawaii on his first trip outside Japan, beginning his worldwide efforts for peace, culture and education based on Nichiren's Buddhism.
1960: October 5 SGI-USA Day President Ikeda arrives in San Francisco on his first trip to the continental United States, setting in motion the American movement to spread the Nichiren's Buddhism. At Coit Tower, President Ikeda declares that this day will one day be looked upon as a significant step forward for the Nichiren's Buddhism and the world itself.
1964: August 15 World Tribune publishes its first issue.
1974: April 1 SGI President Ikeda gives his first university lecture, at UCLA.
1975: January 26 Soka Gakkai International established; Daisaku Ikeda inaugurated as SGI president.
1979: April 24 Daisaku Ikeda forced to resign as Soka Gakkai President because of malicious, false charges created by the Nichiren Shoshu temple.
1987: February 2 SGI President Ikeda formally opens the World Peace Ikeda Auditorium, the first building designed and built specifically for SGI-USA activities.
1987: February 3 Calabasas, California, campus of Soka University of America, founded by SGI President Ikeda, opens.
1990: February 27: SGI-USA Women's Day Mrs. Kaneko Ikeda's Birthday
1991: November 28 Day of Spiritual Independence. Nichiren Shoshu excommunicates twelve million SGI members worldwide.
1993: September 24 The Boston Research Center for the Twenty-first Century is founded by SGI President Ikeda.
1996: February 11 Toda Institute for Global Peace and Policy Research founded by SGI President Ikeda in Tokyo; offices open in Hawaii in 1997.
1996: June 19 The Florida Nature and Culture Center opens.