King Moshoeshoe I's Anniversary, also known as Moshoeshoe Day, is observed in Lesotho every March 11. This public holiday honors King Moshoeshoe I, who was born circa 1786 and is recognized for consolidating various Basotho peoples, laying the foundation for modern Lesotho. He unified several Basotho groupings by 1822 and became their king, known for his diplomatic skills and efforts to invite Roman Catholic missionaries as advisers. His reign faced challenges, including conflicts with British and Boer forces over land. King Moshoeshoe I passed away on March 11, 1870, and his contributions to establishing Lesotho as a unified state are commemorated through this holiday. The day serves as a reminder of his legacy and the historical significance of his leadership.