The First Ilinden Uprising was a significant rebellion that took place in 1903 in the region of Macedonia, which was then part of the Ottoman Empire. The uprising was led by the Internal Macedonian Revolutionary Organization (IMRO) and aimed to achieve greater autonomy for the Macedonian people. It was named after the feast of St. Elijah, which is celebrated on August 2, the day the uprising began. The rebellion was marked by a series of attacks against Ottoman forces and local officials. Although the uprising initially gained some support, it was ultimately suppressed by the Ottoman military, leading to heavy casualties and reprisals against the local population. Despite its failure, the First Ilinden Uprising is remembered as a pivotal moment in the struggle for Macedonian independence.