《辽史·本纪·卷二》
五年春正月初二，开始制定契丹大字。
五年春正月乙丑，始制契丹大字。
Began to establish the Khitan alphabet on the 2nd day of the first month during the spring of the fifth year.
<s>[INST] Translate to English, please: 五年春正月乙丑，始制契丹大字。 [/INST] Began to establish the Khitan alphabet on the 2nd day of the first month during the spring of the fifth year.</s>
Translate to English, please: 五年春正月乙丑，始制契丹大字。
user
Began to establish the Khitan alphabet on the 2nd day of the first month during the spring of the fifth year.
assistant