Tung stands for All, Shu stands for book, so Tung Shu literally means A book that knows all. However, in Cantonese, the pronunciation of Shu resembles Sy, which means defeated, and so Tung Shu sounds like All defeated (通輸).
Therefore the name is changed to Tung shing, which means All won (通勝).
Tung shing also provide a conversion of years and date between the lunar year and the common year. In more detailed versions, the calendar will list eclipses (both solar and lunar), the start of each season, and days when it will be cold or hot. It also teaches ethics and values through stories.
More recent versions even include English definitions and pronunciations written with Cantonese characters.
My Beloved Son Was Just Far Too Young to Die. He Had Never Done Anything Wrong in His Whole Life; HEARTBREAK OF ICE PLUNGE DAD
Jan 01, 2002; Byline: STEPHEN RAFFERTY A DISTRAUGHT dad yesterday choked back tears as he told how he feared the worst an hour after his tragic...