Template:On this day - August 1

Manuel L. Quezon.

• 939 – The troops of the King of León Ramiro II fight the Andalusi troops of Abd al-Rahman III at the Battle of Simancas (present-day Spain).
• 1137 – In Aragon (present-day Spain), Ramiro II promises his daughter Petronilla in marriage to Ramon Berenguer IV of Barcelona.
• 1443 – Alfonso V continues his expansionist policy by conquering the County of Fano (present-day Italy).
• 1498 – Christopher Columbus sights the first mainland of the American continent, territories that today belong to Venezuela.
• 1579 – Birth of Luis Vélez de Guevara, Spanish playwright and novelist of the Golden Age (d. 1639).
• 1610 – Rodrigo de Vivero, Governor of the Philippines, returns to New Spain with 23 Japanese representatives, after his diplomatic voyage to Japan.
• 1704 – The Anglo-Dutch squadron begins the siege of Gibraltar, during the War of the Spanish Succession.
• 1757 – Birth of Pedro Estala, Spanish writer, Hellenist, philologist, translator, literary critic, editor and Piarist religious (d. 1815).
• 1776 – King Charles III, by a Royal Decree, creates the Viceroyalty of the Río de la Plata, thus separating the present-day territories of Argentina, Paraguay, Uruguay and Bolivia from the Viceroyalty of Peru (with its capital in Lima).
• 1889 – The Listín Diario is founded, the newspaper with the largest circulation in the Dominican Republic.
• 1898 – In Madrid (Spain), the Spanish Museum of Contemporary Art opens.
• 1900 – The Cuban physician Carlos Finlay makes public his discoveries about the mosquito that transmits yellow fever.
• 1944 – Death of Manuel Luis Quezon y Molina, Filipino politician, honorary president of the Philippines under American occupation, and fervent defender of Hispanic values (b. 1878).
• 1945 – Death of Blas Cabrera Felipe, Spanish physicist, exiled in Mexico (b. 1878).
• 1926 – In Mexico the anticlerical laws come into force that start the Cristero War, which would not end until 1929.
• 2004 – In Asunción (Paraguay) the Ycuá Bolaños supermarket fire leaves around 400 dead and more than 500 injured. The owners as well as the security guards are charged with locking the doors to prevent looting.
• 2009 – Death of Corazón Aquino, President of the Philippines between 1986 and 1992 (b. 1933).
• 2015 – Hispanopedia begins publishing the first articles on its wiki.