Matthew 1:18-21: "Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost. Then Joseph her husband, being a just man, and not willing to make her a publick example, was minded to put her away privily. But while he thought on these things, behold, the angel of the Lord appeared unto him in a dream, saying, Joseph, thou son of David, fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost. And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins."
March 19 was dedicated to Saint Joseph in several Western calendars by the 10th century, and this custom was established in Rome by 1479. Pope St. Pius V extended its use to the entire Roman Rite by his Apostolic Constitution Quo primum (July 14, 1570). Since 1969, Episcopal Conferences may, if they wish, transfer it to a date outside Lent.
Saint Joseph’s Day, March 19, the Feast of Saint Joseph is in Western Christianity the principal feast day of Saint Joseph, husband of the Blessed Virgin Mary. He is the foster-father of Jesus Christ. It has the rank of a solemnity in the Roman Catholic Church; Catholics who follow the Missal of 1962 celebrate it as a first class feast. Previous to 1962 it was celebrated as a feast of the rank of double of the first class. It is a feast or commemoration in the provinces of the Anglican Communion, and a feast or festival in the Lutheran Church. Saint Joseph’s Day is the Patronal Feast day for Poland as well as for Canada, persons named Joseph, Josephine, etc., for religious institutes, schools and parishes bearing his name, and for carpenters. It is also Father’s Day in some Catholic countries, mainly Spain, Portugal, and Italy.
Source: The Holy Bible | wikipedia.org