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
Line of succession to the Japanese throne debate about amending the Imperial House Law to allow female descendants of an emperor and their descendants to succeed to the throne. In January 2005, Prime Minister Junichiro Koizumi appointed a special panel of judges, university professors, and civil servants to study changes to the Imperial House Law and to make recommendations to the government. On January 24, 2005, the Japanese government announced that it would consider allowing the Crown Prince and Crown Princess to adopt a male child, in order to avoid a possible succession disputes. Adoption from other male-line branches of the Imperial Line is an age-old imperial