By ancient tradition, Basques, and indeed other peoples in Medieval Europe, held assemblies under a tree, usually an oak, to discuss matters affecting the community.The laws of Biscay continued to be drawn up under this tree until 1876, with each town and village in the province sending two representatives to the sessions, known as General Assemblies.This early form of democracy was recorded by the philosopher Rousseau, by the poet William Wordsworth, by the dramatist Tirso de Molina and by the composer Iparragirre, who wrote the piece called Gernikako Arbola ("The Tree of Gernika" in Basque).The oath of King Ferdinand, known as the "Catholic Monarch", on June 30, 1476, is depicted in a painting by Francisco de Mendieta [es] popularly known as "El besamanos" ("The Royal audience").Day-to-day life comprised agriculture (growing of cereals, vegetable and fruit), crafts (menders, tailors, cobblers, flax manufacturers) and trade (transportation and sale of goods and produce).[citation needed] On April 26, 1937, during the Spanish Civil War, Guernica was the scene of a massive aerial bombing attack by the Condor Legion of Nazi Germany's Luftwaffe and the Italian Aviazione Legionaria.It has inspired musical compositions by Octavio Vazquez (Gernika piano trio), René-Louis Baron, Lenny White,[8] and Mike Batt (performed by Katie Melua),[9] and poems by Paul Eluard (Victory of Guernica), and Uys Krige (Nag van die Fascistiese Bomwerpers; English translation from the Afrikaans: Night of the Fascist Bombers).On April 26, 1937, during the Spanish Civil War, the town was razed to the ground by German aircraft belonging to the Condor Legion, sent by Hitler to support Franco's troops.As part of the "Symbol for Peace" movement, Gernika has twinned with several towns, including Berga (Catalonia – 1986), Pforzheim (Germany – 1988) and Boise, Idaho (United States – 1993).They came not just to buy or sell at the produce market, but also to eat at the town's renowned restaurants and afterwards perhaps to watch a pelota game at the local court.