Complex sentence: The Shalivahana era, also known as the Saka era, is used with Hindu calendars, the Indian national calendar, and the Cambodian Buddhist calendar--its year zero begins near the vernal equinox of 78.
Split into simpler sentences: The Shalivahana era, also known as the Saka era, is used with Hindu calendars, the Indian national calendar, and the Cambodian Buddhist calendar. Its year zero begins near the vernal equinox of 78.