From typicallyspanish.com

History
Spain On This Day - June 30
By m.p.
Jun 30, 2008 - 12:52 AM

Fiestas in honour of San Marcial in Irún

713: After a year of assaults the Plaza in Mérida is occupied by the Muslims led by Musa ibn Nusair

1483: The Christian army surrenders the fort at Tájara in Granada

1521: The Castilian troops defeat the Navarra forces in the battle of Noáin

1522: The first battle of San Marcial in Aldabe in Irún, Guipúzcoa. The Franco Navarrians are defeated when trying to recoup the independence of the Kingdom of Navarro

1949: The Spanish Royal Academy names Vicente Aleixandre as a member of the academy occupying the chair ‘O’

2002: Banks stop exchanging the peseta, now only possible in the Bank of Spain