In 1909, Infante settled in Seville, and there contacts the members of the Athenaeum “Andalucismo Culturalista”. To this body he submitted his book Ideal Andaluz setting out practical schemes for the region. He also founded the Andalusian Centre in Sevilla, as another platform for his ideas.
Ronda was important for Blas Infante because there, at the first Hispanic-American Congress, he gave a paper sharply critical of the situation in Andalusia. In the year 1918 Ronda became the key to the historial development of Andalusia. There, the first Assembly of Andalusian Regionalists met and, amongst other matters, debated and laid down political and ideological guidelines for the future andalucismo. It was at this Assembly that the green and white flag and shield were approved as symbols of Andalusia.