1901

Maruki Iri born in Hiroshima.

1912

Akamatsu Toshiko born in Hokkaido.

1922

Iri moves to Tokyo to study ink painting.

1929

Toshi enters Joshibi Women’s School of Art and Design  to study oil painting.

1933

Toshi becomes an elementary school teacher and exhibits in the Nika Show in Tokyo.

1935-1936

Iri exhibits his work in Tokyo.

1937

Toshi works in Moscow as a private tutor for one year.

1938-1944

Iri continues to exhibit his work regularly.

1939

Toshi spends six months in Japanese-occupied Micronesia and then exhibits related work.

1941

Toshi spends another six months in Moscow and then exhibits related work. Toshi and Iri marry. They help organize the Bijutsu Bunka Kyōkai, an anti-war group of surrealist artists which is suppressed in 1943.

1945

Toshi and Iri travel to Hiroshima to care for Iri’s family after the atomic bombing of that city.

1946

Iri organizes a leftist artists’ group and both join the Japan Communist Party. Iri exhibits in the Andepandan show. Toshi exhibits in several shows.

1948

Iri and Toshi begin designs for the first Atomic Bomb murals.

1950

Iri and Toshi exhibit their first joint work, “August 6th,” and complete “Water” and “Fire.”

1953

The artists win the World Peace Culture prize.

1956

The artists tour Europe with the Atomic Bomb murals

1950s-1970s

Iri and Toshi continue to exhibit their individual work, Toshi publishes illustrated children’s books.

1964

The artists are expelled from the Communist Party.

1967

Iri exhibits at the San Paolo Biennale. The Maruki Gallery for the Hiroshima Panels opens in Saitama. A film of their Atomic Bomb murals appears.

1970

The artists exhibit their art in the United States and travel with it.

1971

The artists win a major international art prize and visit Czechoslovakia.

1973

The artists begin research on the Nanjing Massacre, just after travel restrictions to China are eased.

1974

Kadokawa Press publishes a book of the Atomic Bomb murals.

1977

The artists complete a mural depicting Auschwitz.

1978

The artists spend a month in India and travel to France.

1979

They complete “From the Axis Alliance to Sanrizuka” mural and travelled to Bulgaria where the painting remains.

1981

Toshi publishes Hiroshima no Pika, which won a book prize from Yomiuri Press. The artists complete the “Minamata” mural and travel to China.

1983

The Maruki Gallery in Saitama is expanded substantially.

1984

The artists exhibit The Battle of Okinawa at the Tokyo Metropolitan Art Museum adjacent to Tomiyama Taeko’s lithographs on wartime Korean miners.

1987

Toshi published her autobiography, Iitai koto ga arisugite (Too much that I wish to say), Chikuma Press.

1995

The artists are awarded the Asahi prize. Iri passes away.

2000

Toshi passes away.