1929 - American Exhibition in Seville. Large buildings of the architect Aníbal González.
1931 - Opening of the Bridge of San Telmo.
Stage of the Second Republic and Civil War (1931-1939)
In the Municipal Elections held on April 12, 1931 Republican parties due in the main Spanish cities. In Seville, the Republican-socialists get 57% of the votes for 39% of Coalition Monárquica. As a result, King Alfonso XIII takes the path of exile and the Second Republic was proclaimed.
The Spanish Civil War fully affects the Andalusian capital, which since February 1936 was brewing the army coup. On July 18 General Queipo de Llano is done quickly with the control of the 2nd Division Organic and downtown. In the popular districts such as Triana and La Macarena militias mobilized unions and leftist parties but Queipo the defeat by a combination of superior weaponry, cunning and harsh repression. Seville is well occupied by the rebels while Cadiz and Algeciras, which provides ground Franco enough to safely move his Army of Africa to Andalusia by air. Since then becomes Sevilla city behind, acting as a bridgehead for occupation of the rest of the peninsula by the Army of Africa, the most populated of all the towns occupied by the partisan army. The crackdown in the city, between July 18, 1936 and January 1937 kills 3028 people, including the mayor, Horacio Hermoso Araujo, and the Republican former mayor of the city in 1931, José González Fernández of Labandera or the chairman of the Provincial Council, José Manuel Puelles de los Santos.
Stage of the Franco dictatorship (1939-1975)
During the dictatorship of the Franco era the authorities most powerful of Seville and its province are the military authority, embodied in the person occupying the Captaincy General of the Second Military Region, the Civil Government, which in turn is the provincial chief of the Movement; and the archbishop, who heads the Diocese of Seville. The mayors of the city during this period are directly appointed by the Minister of the Interior, most of the time given by the military, political and religious of the city.
Like most significant events of this stage include among others, occurred on March 13, 1941, when the gunpowder explodes in Santa Barbara, located in the Cerro del Águila, destroying ten blocks around him and damaging many more. Calle Jose Arpa, which was the depot, was destroyed, like the streets Huesca, Galicia, Lisbon, Afan de Ribera and part of Heroes of Toledo. The magazine was not military, but the Spanish Society of Explosives.
In 1953 he founded the shipyard Sevilla.
Before the existence of regulatory wetlands in the drainage basin of the Guadalquivir, Seville periodically suffered heavy flooding, but perhaps the worst of all were the floods that occurred in November 1961 when the river Tamarguillo overflowed as a result of the three hundred liters of water per square meter fell in a short space of time. Entire neighborhoods were affected: The Causeway, Cerro del Águila, San Bernardo, El Fontanal, Throw Line, the Puerta de Jerez, bringing the water to the Bell. Sevilla was declared a disaster area. Seville were so many who were left homeless, a month later, he organized a procession set off from Madrid: "Operation Clavel, led by the popular radio announcer Bobby Deglané and that would end in tragedy following a crash .
In 1955 he opened the Private Health Virgen del Rocío, known at first as a residence García Morato. During this period saw the largest urban expansion of the city with the construction of many neighborhoods, being the bearer of this type of urban development in the district of Los Remedios, where he moved in 1973 the Real de la Feria del Prado of San Sebastian.
In the decade of the 60 starts underground organization of labor unions in Seville, around Labor Committees, as Hytasa in factories, shipyards, Hispano Aviacion, etc. Several of its leaders were imprisoned, as Fernando Soto, and Francisco Eduardo Acosta Sabol, put on trial at 1001 (November 1973).

Democratic stage
On April 3, 1979 were held in Spain the first democratic municipal elections in Seville were conejales four different political parties: Unión de Centro Democrático (UCD) won nine councilors, Andalusian Party 8, the Spanish Socialist Party (PSOE) 8 Communist Party of Spain (PCE) 6. As no party achieved a clear majority, a coalition government between PSA, PSOE and PCE, which councilor elected mayor Luis Uruñuela. Andalucista
On November 5, 1982, Pope John Paul II arrived in Seville and, among other acts, celebrated a Mass before more than half a million people in the Country Fair and held there for the beatification of Sor Ángela de la Cruz, founder of the Congregation of the Sisters of the Cross. Subsequently visited the town again on 13 June 1993, the process of closing the International Eucharistic Congress held in Sevilla. From 1982 to 1996 he held the Prime Minister of Spain Felipe González Sevilla politician.
In 1992, he held the six-month World Expo in Seville, during which the network was greatly improved communications infrastructure: SE-30, construction of highways, new railway station Santa Justa train operating high Speed Spanish (AVE) Madrid-Sevilla and construction of a new airport. In this exhibition, remain some of the rooms that were converted into the largest technology park in Andalusia, Cartuja 93, the Isla Mágica theme park, the monumental Alamillo Bridge over the Guadalquivir by architect Santiago Calatrava and Barqueta Bridge.
Throughout these years there were several terrorist attacks that has made the terrorist group ETA in Seville, marked by its cruelty January 1998 murders of Popular Party councilor, Alberto Jiménez-Becerril and his wife Ascension Barrio García Ortiz24 and in October 2000 of Colonel Antonio Munoz doctor Cariñanos. These killings provoked a major pain in the city and impressive demonstrations against ETA terrorism.