The History of Gibraltar

The final reconquest of Gibraltar from the Moors occurred on 20 August 1462, when forces loyal to Juan Alonso de Guzman, the 1st Duke of Medina Sidonia, seized the Rock. The capture took place during the broader Reconquista, the centuries-long Christian campaign to reclaim the Iberian Peninsula from Muslim rule. The exact circumstances remain somewhat contested among historians, with some attributing the victory jointly to Rodrigo Ponce de Leon and others to the Duke alone, but the Medina Sidonia family maintained control initially. In 1501, Queen Isabella I of Castile formally incorporated Gibraltar into the Spanish Crown, and in 1502 she granted the territory its coat of arms - a red castle with a gold key hanging from the gate - which remains the symbol of Gibraltar to this day. The motto "Montis Insignia Calpe" (Badge of the Rock of Calpe) referenced the ancient Roman name for Gibraltar.

Under Spanish rule, Gibraltar served primarily as a military garrison town guarding the entrance to the Mediterranean. It was not a major commercial centre, but its strategic position made it a vital link in Spain's maritime defence network. The fortifications were maintained and expanded. Charles V, Holy Roman Emperor and King of Spain, ordered improvements to the defences in the 16th century, including the construction of Charles V Wall, which still runs across the upper Rock. Philip II of Spain further strengthened the southern defences. The town's population remained modest - a mixture of soldiers, their families, and a small civilian community of traders and craftsmen.

On 4 August 1704, during the War of Spanish Succession, an Anglo-Dutch force of approximately 1,800 marines under the command of Prince George of Hesse-Darmstadt, supported by the fleet of Admiral Sir George Rooke, captured Gibraltar. The attack came in support of the Habsburg claimant Archduke Charles against the Bourbon Philip V of Spain. After a bombardment from the fleet, the marines landed on the narrow isthmus connecting the Rock to the mainland. The Spanish garrison, numbering only around 150 troops, surrendered after just three days. Most of the Spanish civilian population fled. Though initially captured in the name of Archduke Charles, Rooke raised the British flag, and Britain has held sovereignty over Gibraltar ever since.

Spain made an immediate attempt to retake the Rock. The Twelfth Siege of Gibraltar (1704–1705) saw a combined Franco-Spanish force of approximately 12,000 troops besieging the small British and Dutch garrison. Despite being heavily outnumbered, the defenders held out, reinforced by sea, and the siege was eventually lifted. The capture was formalised by the Treaty of Utrecht, signed on 13 July 1713, which ended the War of Spanish Succession. Under Article X of the treaty, Spain ceded Gibraltar to Great Britain "in perpetuity." The treaty specified that Britain would hold the "full and entire propriety of the town and castle of Gibraltar, together with the port, fortifications, and forts thereunto belonging." This article remains the legal basis of British sovereignty to this day.

The 19th century saw Gibraltar consolidate its role as one of the most important military fortresses in the British Empire. Following the Great Siege, the civilian population expanded rapidly as the territory became a place of economic opportunity and refuge from the upheavals of the Napoleonic Wars. By 1800, the civilian population had swelled to over 5,000, nearly double previous levels. Many of the new arrivals were Genoese who had fled Napoleon's annexation of the Republic of Genoa; by 1813, nearly a third of the population consisted of Genoese and Italians. Portuguese, Maltese, Spanish, Jewish, and British settlers further diversified the community. This cosmopolitan mixture would gradually crystallise into the distinct Gibraltarian identity and give rise to Llanito, the unique local dialect blending Andalusian Spanish with English and words from Genoese, Maltese, Portuguese, and Haketia (Judaeo-Spanish).

However, the overcrowded fortress was ravaged by devastating yellow fever epidemics. The 1804 outbreak was catastrophic: over the course of just four months, yellow fever killed more than 2,200 people - approximately one-quarter of the permanent residents and military personnel. The civilian population, with no prior exposure and thus no immunity, was especially vulnerable. Overcrowded living conditions in multi-tenant "patios" facilitated the disease's rapid spread. Further outbreaks struck in 1810 (claiming only 6 lives due to improved quarantine measures), 1813–1814 (640 deaths), and the final epidemic of 1828 (1,170 deaths). Authorities implemented measures including forced relocation of the sick to encampment tents on the Neutral Ground, evacuation of "unnecessary" foreigners, and the issuing of "fever passes" to survivors. The true cause - transmission by the Aedes aegypti mosquito - would not be understood until the early 20th century.

The post-war decades brought profound political change to Gibraltar. The traumatic experience of wartime evacuation - when the entire civilian population was uprooted and dispersed for years - galvanised a growing sense of Gibraltarian identity and a demand for political self-determination. The last evacuees returned in 1951, and the returning population found a territory still dominated by military infrastructure. The move toward self-governance gained momentum through the 1950s and 1960s. The Legislative Council, originally a colonial advisory body, was gradually given more authority. The Association for the Advancement of Civil Rights (AACR), founded by Sir Joshua Hassan in 1942, became the leading political force advocating for democratic reform.

The pivotal moment came on 10 September 1967, when Gibraltar held its first sovereignty referendum. Against the backdrop of Franco's Spain demanding the return of the territory, and a United Nations resolution calling for bilateral negotiations, Gibraltarians were asked to choose between passing under Spanish sovereignty (Option A) or retaining their association with Britain with greater democratic self-government (Option B). The result was emphatic: with a turnout of 95.8%, a total of 12,138 votes (99.6%) chose to remain British, while only 44 voted for Spanish sovereignty. This date, 10 September, has been celebrated annually as Gibraltar National Day since 1992. The UN General Assembly passed Resolution 2353, criticising the referendum and calling for negotiations, but the result had established an unambiguous democratic mandate.