The club was born from a group of youths from Las Piedras, Uruguay who played soccer at San Isidro Catholic school. On December 24, 1935 the boys arrived at school expecting to play, but when they got there the priests had forbidden it as they were preparing a big nativity crèche set on the field. Angry, the students, among them Carlos Maria Cabrera met in the town square and decided to found the club on Christmas Eve 1935, in rebellion against the priests. Having created the club, Cabrera prompted them with the T-shirts to promote his father's business, who had a store on the corner of the square. This is how he got the club's first uniforms that were donated by the textile companyILDU as an arrangement. Therefore, in the first stages of its existence the club was called Club Ildu. In 1946, at a meeting headed by very young entrepreneurs, some of them with great prominence in the local and national political arena, as Vivian Trias and Carlos Abete, dean of the Faculty of Chemistry, among others, resolved to change the club's name, to ensure its reputation from a group of youths from a neighbourhood to a serious institution and representative of the city of Las Piedras. They decided to honor they youths who created it by naming it as the current Club Atletico Juventud de Las Piedras and it officially acquired its present name with effect on 13 December 1947. In later years they signed in the Liga Regional del Sur in Football and Basketball tournaments, besides competing nationally in athletics and bowling. Although some years where tougher than others they progressively improved until they won the Southern Region's football youth league in 1980. On that same year Juventud left the Youth League of the Southern Region and entered the Asociación Uruguaya de Fútbol, participating in the Metropolitan Amateur Football League 1981 championship where they achieved a vice championship. On November 5 of 1995, after several years of fighting for promotion they won the championship and ascended to the A.U.F's second division, the Segunda División de Uruguay, sometimes referred to as "B". Four years later, on November 6, 1999 they won the 2nd division championship, becoming the first team from the inner-country to achieve such a title and reach the main stage of Uruguayan soccer, the Primera División Uruguaya, where they remained until 2003. By doing so Juventud has the particularity of being the first team outside of Montevideo to beat Uruguay's two giants Club Nacional de Football and Club Atlético Peñarol, in February and September 2001 respectively In February 2006 a U-20 youth team representative of the club was invited to and won the Viareggio Youth Tournament on Viareggio Italy, making it along FK Partizan Belgrade from Serbia, Sparta Prague and Dukla Prague of the Czech Republic one of the only three countries to win the tournament outside Italy and one of the only four clubs to do so.
