Japanese era name

		Unicode name		Start (ISO 8601)
U+337B	㍻	SQUARE ERA NAME HEISEI	≈ <square> 5E73 平  6210 成	1989-01-08
U+337C	㍼	SQUARE ERA NAME SYOUWA	≈ <square> 6629 昭  548C 和	1926-12-25
U+337D	㍽	SQUARE ERA NAME TAISYOU	≈ <square> 5927 大  6B63 正	1912-07-30
U+337E	㍾	SQUARE ERA NAME MEIZI	≈ <square> 660E 明  6CBB 治	1868-10-23