that also served as a storeroom. The house had three windows, including the "rorun-puyar," a window located on the side facing the entrance (at the east side), through which gods entered and left and ceremonial tools were taken in and out. The Ainu have regarded this window as sacred and have been told never to look in through it. A house had a fireplace near the entrance. The husband and wife sat on the fireplace's left side (called shiso) . Children and guests sat facing them on the fireplace's right side (called harkiso). The house had a platform for valuables called iyoykir behind the shiso. The Ainu placed sintoko (hokai) and ikayop (quivers) there. Traditions The Ainu people had various types of marriage. A child was promised in marriage by arrangement between his or her parents and the parents of his or her betrothed or by a go-between. When the betrothed reached a marriageable age, they were told who their spouse was to be. There were also marriages based on mutual consent of both sexes. In some areas, when a daughter reached a marriageable age, her parents let her live in a small room called tunpu annexed to the southern wall of her house. The parents chose her spouse from men who visited her. The age of marriage was 17 to 18 years of age for men and 15 to 16 years of age for women, who were tattooed. At these ages, both sexes were regarded as adults. When a man proposed to a woman, he visited her house, ate half a full bowl of rice handed to him by her, and returned the rest to her. If the woman ate the rest, she accepted his proposal. If she did not and put it beside her, she rejected his proposal. When a man became engaged to a woman or they learned that their engagement had been arranged, they exchanged gifts. He sent her a small engraved knife, a workbox, a spool, and other gifts. She sent him embroidered clothes, coverings for the back of the hand, leggings and other handmade clothes. The worn-out fabric of old clothing was used for baby clothes because soft cloth was good for the skin of babies and worn-out material protected babies from gods of illness and demons due to these gods' abhorrence of dirty things. Before a baby was breast-fed, they were given a