History of Athletic Bilbao
Meanwhile, sons of the Basque educated classes had made the opposite journey and went to Britain to complete their studies in civil engineering and commerce. While in the United Kingdom, these students developed an interest in football and on their return to Bilbao they began to arrange games with British workers. In 1898, students belonging to the Gymnasium Zamacois founded the "Athletic Club", using the English spelling. In 1901, a meeting was held in the Café García, which established more formal rules and regulations. In 1902, the two Bilbao clubs formed a combined team, known as "Bizcaya", in the first Copa del Rey. They returned with the trophy after defeating Barcelona in the final. This would lead to the eventual merger of the two clubs as "Athletic Club" in 1903. In the same year, Basque students also formed "Athletic Club Madrid"; this club later evolved into Atlético Madrid. The club's foundation date is a subject of debate among football historians. The club itself declares 1898, but others claim 1901 or 1903 as the true founding year.
Athletic Bilbao B
Bilbao Athletic dropped back down to the third level in 1996, but the main squad continued to be nurtured with several players who had spells with the reserves.
After 19 seasons in the Segunda División B, Bilbao Athletic returned to the second tier after defeating Cádiz CF, 3–1 on aggregate, in the promotion playoffs. However in their campaign in the Segunda they were reliant on the same group, a core squad of 20-year-olds who had never played at such a high level before, and despite battling performances in most of their games, a pattern of narrow defeats led to the team finishing bottom and being relegated back down at the first attempt. Somewhat ironically, the promoted teams that season were CD Leganés whose squad included three players on loan from Athletic who would have been eligible to play for Bilbao Athletic that season, as well as the parent club's local rivals Alavés and Osasuna.