The Sak Yant Hah Taew dates its origin back over 700 years to the ancient Kingdom of Lanna which is now known as Northern Thailand. The Buddhist Monk credited with the design of the Hah Taew 5 Lines Sak Yant is Kruba Kam of Wat Ton Pin, a Buddhist Temple in Chiang Mai, which unfortunately no longer exists today. Kruba Kam designed the Hah Taew at around the time King Mengrai founded the city of Chiang Mai in 1296.
Over the centuries, either by accident or design, the original 5 lines of script which were written in Khom, an ancient Khmer language, underwent several changes and in recent years, several Sak Yant Ajarns have completely replaced the original 5 lines of script with lines of their own.
The 5 lines of script (transcribed) used in the original Hah Taew design are:
1. i ra cha ka ta ra sa
2. ti hang ja toh loh ti nang
3. soh ma na ga ri tah toh
4. pi sam lah loh pu sa pu
5. ka pu bam too tahm wa ka