永えい延えん

noun

Eien era (987.4.5–989.8.8)

A Japanese era name (年号) spanning from the 5th day of the 4th month of 987 to the 8th day of the 8th month of 989 in the traditional calendar.

• 永えい延えん年ねん間かんに書かかれた文ぶん書しょが残のこっている。

  Documents written during the Eien era survive.