Women in Japan period to 100 days and allows any woman who is not pregnant during the divorce to remarry immediately after divorce. The Civil Code of Japan requires legally married spouses to have the same surname. Although the law is gender-neutral, meaning that either spouse is allowed to change his/her name to that of the other spouse, Japanese women have traditionally adopt their husband’s family name and 96% of women continue to do so as of 2015. In 2015, the Japanese Supreme Court upheld the constitutionality of the law, noting that women could use their maiden names informally, and stating that it
Lithuanian name married woman usually adopts her husband's name. However, other combinations are legally possible. The wife may keep her maiden name ("mergautinė pavardė") or add her husband's surname to hers, thus creating a double-barrelled name. It is also possible, though rare, for the husband to adopt his wife's surname or to add his wife's surname to his family name. Family names first appeared in Lithuania ca. end of 14th century beginning 15th century and were only reserved to the Lithuanian nobility. They usually derived from patronymics. The most striking peculiarity of the historical Lithuanian heraldic system, which is adopted from the