I stumbled upon this site which talked about some laws in Roman times. Some of the really strange ones:
(1) Women are forbidden to interfere in every kind of business matters and obligations, in behalf of males, as well as of females.
(3) Money lent on bottomry can bear any amount of interest as long as the vessel sails, on account of the risk assumed by the creditor.
(8) An absent man can marry a wife; an absent woman, however, cannot marry.
(1) A man cannot keep a concubine at the same time that he has a wife.....1 Hence a concubine differs from a wife only in the fact that she is entertained for pleasure.
(1) A man cannot keep a concubine at the same time that he has a wife.....1 Hence a concubine differs from a wife only in the fact that she is entertained for pleasure.
(1) A dowry either precedes or follows marriage, and hence it can be given either before or after the ceremony, but where it is given before marriage it anticipates its occurrence.
(10) It should be noted that two adulterers can be accused at the same time with the wife, but more than that number cannot be.
(11) It has been decided that adultery cannot be committed with women who have charge of any business or shop.
(12) Anyone who debauches a male who is free, against his consent, shall be punished with death.
(14) It has been held that women convicted of adultery shall be punished with the loss of half of their dowry and the third of their estates, and by relegation to an island. The adulterer, however, shall be deprived of half his property, and shall also be punished by relegation to an island; provided the parties are exiled to different islands.
(16) Fornication committed with female slaves, unless they are deteriorated in value or an attempt is made against their mistress through them, is not considered an injury.
(36) Anyone who steals his own property is not liable in the action of theft, provided that in doing so he does not injure another.