Kartini Day is celebrated on April 21st each year in Indonesia to honor the legacy of Raden Ajeng Kartini, a prominent figure in the fight for women's rights and education in the early 20th century. Born in 1879, Kartini advocated for the empowerment of women and sought to improve their access to education, challenging traditional norms of her time. The day is marked by various activities, including seminars, discussions, and cultural events that promote gender equality and women's empowerment. Schools and organizations often hold events to raise awareness about the importance of education for girls, reflecting Kartini's vision for a more equitable society.