Showa 8 (1933), 27 years old, asked the playwright Shin Hasegawa for help. Published "Ginza and Girls' School" in "Public Club".
Showa 9 (1934), 28 years old. Because Yoshikawa Eiji broke the contract, he was angry and went to Yoshikawa's house to beat him.
Showa 10 (1935) 29 years old. Published works such as "Snow Crash" in magazines.
Serialized "Land Breakwater" at the age of 30 in Showa 11 (1936).
In the 12th year of Showa (1937), at the age of 31, he published "The Value of Love" (unfinished).
Showa 13 (1938) 32 years old. "Restraint" published in the October 16th issue of "Mainichi Weekly" was selected as "Mainichi Popular Literature". Taking this opportunity, Yamaoka decided to make writing his lifelong career.
Serialized "Flag of the Family" in Showa 14 (1939) at the age of 33.
Showa 15 (1940) 34 years old "Flag of the Family" was adapted into a movie.
Showa 16 (1941), 35 years old, joined the army in the middle of the year. Serialized "The Volume of the Sun·Opium War".
In the 17th year of Showa (1942), at the age of 36, he was recruited by the Japanese Navy Headquarters and moved to North China, Central China, South China, Thailand and Malaysia as a reporter. He also won the "Noma Literary Award" for his works such as "Naval War Chronicles". Published 6 volumes including "Military God Lieutenant Colonel Sugimoto".
Showa 18 (1943), 37 years old, serialized one of his personal masterpieces, "Shield", in "The King".
Showa 19 (1944), 38 years old. His work "Marshal Yamamoto Isoroku" was recommended by the Ministry of Education, Culture, Sports, Science and Technology and the 9th Japan Publishing Association. "Shield" has also become the recommended book for the 13th session. The works were published in Chinese textbooks and became basic teaching materials.
The war ended in Showa 20 (1945), 39 years old. Serialized "The Legend of Divine Thunder in the Army".
In the 22nd year of Showa (1947), at the age of 43, he gave a speech for the first time at the "Food Crisis Elimination Conference" held at the Hibiya Park Concert Hall, advocating "the ultimate ownership of property."
Showa 25 (1950), 44 years old, began serializing "Tokugawa Ieyasu" in "Hokkaido Shimbun". After the 150th episode, it was serialized in Chubu Nippon Shimbun and Kobe Shimbun.
Showa 26 (1951), 45 years old, serialized "Chiba Shusaku", "Mito Yellow Gate" and "Yawatabune".
Serialized "Nichiren" in Showa 27 (1952) at the age of 46.
Showa 29 years old (1954) 48 years old. "Oda Nobunaga" and "Yamada Nagamasa" were serialized.
Showa 30 (1955), 49 years old, serialized "Sakamoto Ryoma" and "Toyotomi Hideyoshi".
Serialized "New Taipei Chronicle" at the age of 50 in Showa 31 (1956).
Showa 33 (1958), 52 years old. "Tokugawa Ieyasu" serialized for more than 2,000 chapters, so he held a "Yamaoka Shohachi Celebration Party" through the "China-Japan Cultural Awards". The congratulatory guests included more than 400 people including Eiji Yoshikawa and Shiogoro Kaionji.
Serialized "The Yagyu Clan" at the age of 55 in Showa 36 (1961).
Showa 37 (1962) 56 years old. During this period, he often participated in various lectures, symposiums and dialogues. Serialized "Motonari Mori", "Novel Pacific War", "Essays Tokugawa Ieyasu".
Showa 38 (1963) 57 years old NTV screened "Married Life". Kabukiza screens "Tokugawa Ieyasu". In December, he began to serve as director of the Shintakakai Foundation and president of the Hasegawa Shinkai Foundation until May of Showa 47. Serialized "Emperor Meiji" and "The Soul of the Scholar among the Common People".
Showa 39 (1964), 58 years old. In January, he participated in the regular singing ceremony at the Imperial Palace. In June, he served as a member of the Central Correction Protection Review Committee of the Ministry of Justice. Serialized "Yagyu Three Days Dog".
Showa 40 (1965), 59 years old. On March 8, the "Celebration Party to Commemorate Tokugawa Ieyasu's 10,000,000th Edition" was held at the Imperial Hotel.
Attendees included Prime Minister Eisaku Sato, Economic Minister Tanaka Kakuei, Bank of Japan President Usami, Kawabata Yasunari, Funabashi Seiichi, Murakami Genzo and other well-known figures, including more than 700 people. In April, I participated in the Chiyu Garden Party.
Showa 41 (1966) 60 years old. Entering the age of 60, he became the oldest person in the literary world.
The final chapter of "Tokugawa Ieyasu" at the age of 61, Showa 42 (1967). Received the 2nd Hasegawa Shinji Prize. In September, he was appointed as the honorary dean of Changpyeong Hwang Junior College. Serialized "Tokugawa Ieyasu's Gossips" and "The Legend of the Japanese Swordsman".
Showa 43 (1968), 62 years old. In March, he won the 2nd Yoshikawa Eiji Literature Prize for "Tokugawa Ieyasu".
Showa 44 (1969) 63 years old In October, the "Yamaokaso Hattokugawa Ieyasu Monument" in Nikko Toshogu Shrine was unveiled. It is written on the monument: "Everyone is a branch and leaf in the tree of life."
Showa 45 (1970), 64 years old, published "Date Masamune".
Showa 46 (1971), 65 years old. It took 10 years to complete "Pacific War" and then completed it. NHK is screening the Taiga drama based on Yamaoka's original work "Spring on the Road".
Showa 48 (1973), 67 years old, won the Niigata Broadcasting Culture Award and the Purple Ribbon Medal.
Showa 49 (1974), 68 years old, founded the "Japan Protection Association" at the Meiji Memorial Hall and became one of the representative members. Serialized "Tokugawa Iemitsu".
Showa 51 (1976) At the age of 70, a monument with characters in the square in front of the castle tower in Okazaki Park, Okazaki City was unveiled.
Showa 52 (1977) 71 years old. In June, the literary monument in Yagyu Hotokuji Temple was unveiled.
Showa 53 (1978) 72 years old. At 7:2 pm on September 30, he developed pneumonia and died at the Tokyo Ikebukuro Cancer Research Association Hospital. On October 6, he was awarded the second-class Ruibao Medal from the four honors.