The Wives of Shem, Ham, and Japheth are the wives of the three sons of Noah. All three of the wives along with their husbands, father-in-law, and mother-in-law boarded the ark and started humanity again after the flood. From each of them, came a different nation.
The wives of Shem, Ham, and Japheth are first mentioned by God, when He instructed Noah to take them on the ark with their husbands, and his wife. After the completion of the ark, they went on it with their husbands and they were spared from death in the flood. They stayed on the ark until the earth was dry, then they went out of the ark and worshiped with Noah, his wife, and his sons.
From the wife of Shem, the nation of Israel was born. This is the genealogy of Shem and his wife from Shem to Abram: Shem begot Arphaxad, Arphaxad begot Salah, Salah begot Eber, Eber begot Peleg, Peleg begot Reu, Reu begot Serug, Serug begot Nahor, Nahor begot Terah, and Terah begot Abram (Abraham), Nahor, and Haran. Shem's descendants today are the Semetic people of the Middle East.
Gen 10:6 And the sons of Ham; Cush, and Mizraim, and Phut, and Canaan. Some say that Canaan was the fourth son of Ham, since he was the last one mentioned, while others say that Canaan was Ham's firstborn, since firstborn sons were very important in Biblical culture, which is why Noah cursed Canaan, and not any of Ham's other sons. Also, Ham's descendants today are the people of Africa and anyone of African descent.
Gen 10: 2-5 Tiras, Magog,Javan, Meshech, Gomer. From them come the Gentiles, although Japheth's descendants are not at all mentioned after Genesis until the new testament. Japheth's descendants today are the people of Europe and anyone of European descent.