The Shalivahana Era, also known as the Shaka Era, is a historical calendar system that began in 78 CE. It was established by the Indian king Shalivahana and is used primarily in the Indian subcontinent. This era is significant for its influence on various regional calendars and is often referenced in inscriptions and historical texts. The Shalivahana Era is marked by its association with the Shaka dynasty, which played a crucial role in Indian history. The era is used to date many events, including the reigns of various kings and the composition of important literary works. It remains an essential part of India's cultural and historical heritage.