Timeline of women's sports in the United States Lyle Alberga, was the first of three women to play Negro league baseball, and thus the first woman to play as a regular on an American big-league professional baseball team. 1954 - The All-American Girls Professional Baseball League played its last season. 1955 - The first LPGA championship was held. 1959 - Arlene Pieper became the first woman to officially finish a marathon in the United States when she finished the Pikes Peak Marathon. 1960 - Mary McGee earns a FIM license and becomes the first official female motorcycle racer in the United States. 1961 - The WIBC Queens all-female
Yoshida Mitsuyoshi Yoshida Mitsuyoshi , also known as Yoshida Kōyū, was a Japanese mathematician in the Edo period. His popular and widely disseminated published work made him the most well known writer about mathematics in his lifetime. He was a student of Kambei Mori (also known as Mōri Shigeyoshi). Along with Imamura Chishō and Takahara Kisshu, Yoshida became known to his contemporaries as one of "the Three Arithmeticians." Yoshida was the author of the oldest extant Japanese mathematical text. The 1627 work was named "Jinkōki". The work dealt with the subject of soroban arithmetic, including square and cube root operations. In a