The History of Ecuador extends over a 9,000-year period. During this time a variety of cultures and territories influenced what has become the Republic of Ecuador. The history can be divided into five eras: Pre-Columbian, The Conquest, The Colonial Period, The War of Independence and the Republican Era. The beginning of the history is represented by a variety of cultures and finishes with the Incan invasion. The Incas were followed closely by the arrival of the conquistadors, the Spanish Conquests. The Spanish would found modern day Quito and Guayaquil as part of the political-administration era which lasted until the war of Independence, the rise of Gran Colombia and Simon Bolivar to the final separation of his vision into what is known today as the Republic of Ecuador.

During the Formative Period, people of the region moved from the hunter-gather a simple farming into a more developed society, with permanent developments, an increase in agriculture and the use of ceramics. New cultures included the Machalilla culture, Valdivia, Chorrera in the coast; Cotocollao, The Chimba in the sierra; and Pastaza, Chiguaza in the oriental region. The Valdivia culture is the first culture where significant remains have been discovered. Their civilization dates back as early as 3500 B.C. Living in the area near The Valdivias, they were the first Americans to use pottery. They navigated the seas and established a trade network with tribes in the Andes and the Amazon. Succeeding the Valdivia, the Machallia culture were a farming culture who thrived along the coast of Ecuador between the 2nd and 1st millennia BC. These appear to be the earliest people to cultivate maize in this part of South America. Existing in the late formative period the Chorrera culture lived in the Andes and Coastal Regions of Ecuador between 1000 and 300 BC.

Spanish Discovery and Conquest

As the Inca Civil War raged, in 1531 the Spanish landed in Ecuador. Led by Francisco Pizzaro, the conquistadors learned that the conflict and disease were destroying the empire. After receiving reinforcements in September 1532, Pizzaro set out to the newly victorious Atahualpa.

Arriving Cajamarca Pizarro sent an embassy, led by Hernando de Soto with 15 horsemen and an interpreter; shortly thereafter he sent 20 more horsemen led by his brother [[Hernando Pizarro as reinforcements in case of an Inca attack. Atahualpa was in awe of these men dressed in full clothing, with long beards and riding horses (an animal he had never seen). In town Pizzaro set a trap for the Inca and the Battle of Cajamarca began. The Inca forces greatly out numbered the Spanish, however the Spanish superiority of weapons, tactics and the fact that the most trusted in Inca Generals were in Cusco led to an easy defeat and the capture of the Incan Emperor.

During the next year Pizzaro held Atahualpa for ransom. The Incas filled the Ransom Room with gold and silver awaiting a release that would never happen. On August 29, 1533 Atahualpa was garroted. The Spanish then set out to conquer the rest of Tawantinsuyu capturing Cuzco in November 1533.

Benalcázar, Pizarro's lieutenant and fellow Extremaduran, had already departed from San Miguel with 140 foot soldiers and a few horses on his conquering mission to Ecuador. At the foot of Mount Chimborazo, near the modern city of Riobamba (Ecuador) he met and defeated the forces of the great Inca warrior Rumiñahui with the aid of Cañari tribesmen who served as guides and allies to the conquering Spaniards. Rumiñahui fell back to Quito, and, while in pursuit of the Inca army, Benalcázar encountered another, quite sizable, conquering party led by Guatemalan Governor Pedro de Alvarado. Bored with administering Central America, Alvarado had set sail for the south without the crown's authorization, landed on the Ecuadorian coast, and marched inland to the Sierra. Most of Alvarado's men joined Benalcázar for the siege of Quito. In 1533, Rumiñahui, burned the city to prevent the Spanish from taking it, thereby destroying any traces of the ancient pre-Hispanic city.

Benalcázar had also founded the city of Guayaquil in 1533, but it had subsequently been retaken by the local Huancavilca tribesmen. Francisco de Orellana, yet another lieutenant of Francisco Pizarro from the Spanish city of Trujillo, put down the native rebellion and in 1537 reestablished this city, which a century later would become one of Spain's principal ports in South America.

Spanish Colonial Era

Between 1544 and 1563, Ecuador was an integral Spain's colonies in the New World under the Viceroyalty of Peru, having no administrative status independent of Lima. It remained a part of the Viceroyalty of Peru until 1720, when it joined the newly created Viceroyalty of New Granada; within the viceroyalty, however, Ecuador was awarded its own audiencia in 1563, allowing it to deal directly with Madrid on certain matters. The Quito Audiencia, which was both a court of justice and an advisory body to the viceroy, consisted of a president and several judges (oidores).

The most common form in which the Spanish occupied the land was the encomienda. By the early seventeenth century, there were some 500 encomiendas in Ecuador. Although many consisted of quite sizable haciendas, they were generally much smaller than the estates commonly found elsewhere in South America. A multitude of reforms and regulations did not prevent the encomienda from becoming a system of virtual slavery of the Native Ecuadorians, estimated at about one-half the total Ecuadorian population, who lived on them. In 1589 the president of the audiencia recognized that many Spaniards were accepting grants only to sell them and undertake urban occupations, and he stopped distributing new lands to Spaniards; however, the institution of the encomienda persisted until nearly the end of the colonial period.

The coastal lowlands north of Manta were conquered, not by the Spanish, but by blacks from the Guinean coast who, as slaves, were shipwrecked en route from Panama to Peru in 1570. The blacks killed or enslaved the native males and married the females, and within a generation they constituted a population of zambos that resisted Spanish authority until the end of the century and afterwards managed to retain a great deal of political and cultural independence.

The coastal economy revolved around shipping and trade. Guayaquil, despite being destroyed on several occasions by fire and incessantly plagued by either yellow fever or malaria, was a center of vigorous trade among the colonies, a trade that was technically illegal under the mercantilist philosophy of the contemporary Spanish rulers. Guayaquil also became the largest shipbuilding center on the west coast of South America before the end of the colonial period.

The Ecuadorian economy, like that in the mother country, suffered a severe depression throughout most of the eighteenth century. Textile production dropped an estimated 50 to 75 percent between 1700 and 1800. Ecuador's cities gradually fell into ruins, and by 1790 the elite was reduced to poverty, selling haciendas and jewelry in order to subsist. The Native Ecuadorian population, in contrast, probably experienced an overall improvement in its situation, as the closing of the obrajes commonly led Native Ecuadorians to work under less arduous conditions on either haciendas or traditional communal lands. Ecuador's economic woes were, no doubt, compounded by the expulsion of the Jesuits in 1767 by King Charles III of Spain. Missions in the Oriente were abandoned, and many of the best schools and the most efficient haciendas and obrajes lost the key that made them outstanding institutions in colonial Ecuador.

The Republic of Ecuador

Before the year 1830 drew to a close, both Marshal Sucre and Simón Bolívar would be dead; the former, murdered (on orders from a jealous General Flores, according to some historians), and the latter, from tuberculosis.

Juan José Flores known as the founder of the Republic was of the foreign military variety. Born in Venezuela, he had fought in the wars for independence with Bolívar, who had appointed him governor of Ecuador during its association with Gran Colombia. As a leader, however, he appeared primarily interested in maintaining his power. Military expenditures, from the independence wars and from an unsuccessful campaign to wrest Cauca Province from Colombia in 1832, kept the state treasury empty while other matters were left unattended.

Discontent had become nationwide by 1845, when an insurrection in Guayaquil forced Flores from the country. Because their movement triumphed in March (marzo), the anti-Flores coalition members became known as marcistas. They were an extremely heterogeneous lot that included liberal intellectuals, conservative clergymen, and representatives from Guayaquil's successful business community.

The next fifteen years constituted one of the most turbulent periods in Ecuador's century and a half as a nation. The marcistas fought among themselves almost ceaselessly and also had to struggle against Flores's repeated attempts from exile to overthrow the government. The most significant figure of the era, however, was General José María Urbina, who first came to power in 1851 through a coup d'état, remained in the presidency until 1856, and then continued to dominate the political scene until 1860. During this decade and the one that followed, Urbina and his archrival, García Moreno, would define the dichotomy—between Liberals from Guayaquil and Conservatives from Quito—that remained the major sphere of political struggle in Ecuador in the 1980s.

By 1859—known by Ecuadorian historians as the Terrible Year—the nation was on the brink of anarchy. Local caudillos had declared several regions autonomous of the central government. One of these caudillos, Guayaquil's Guillermo Franco, signed the Treaty of Mapasingue ceding the southern provinces of Ecuador to an occupying Peruvian army led by General Ramón Castilla. This action was outrageous enough to unite some previously disparate elements. García Moreno, putting aside both his project to place Ecuador under a French protectorate and his differences with General Flores, got together with the former dictator to put down the various local rebellions and force out the Peruvians. This effort opened the last chapter of Flores's long career and marked the entrance to power of García Moreno.

Ecuador since 2000

On January 21, 2000, during demonstrations in Quito by indigenous groups, the military and police refused to enforce public order. Demonstrators entered the National Assembly building and declared, in a move that resembled the coups d'état endemic to Ecuadorean history, a three-person junta in charge of the country. Field-grade military officers declared their support for the concept. During a night of confusion and failed negotiations President Mahuad was forced to flee the presidential palace for his own safety. Vice President Gustavo Noboa took charge by vice-presidential decree; Mahuad went on national television in the morning to endorse Noboa as his successor. The military triumvirate that was effectively running the country also endorsed Noboa. The Ecuadorean Congress then met in an emergency session in Guayaquil on the same day, January 22, and ratified Noboa as President of the Republic in constitutional succession to Mahuad.

Although Ecuador began to improve economically in the following months, the government of Noboa came under heavy fire for the continuation of the dollarization policy, its disregard for social problems and other important issues in Ecuadorean politics.

Retired Colonel Lucio Gutiérrez, a member of the military junta that overthrew Mahuad, was elected president in 2002 and assumed the presidency on January 15, 2003. Gutierrez's Patriotic Society Party had a small fraction of the seats in Congress and therefore depended on the support of other parties in Congress to pass legislation.

In December 2004, Gutiérrez unconstitutionally dissolved and appointed new judges to the Supreme Court. This move was generally seen as a kickback to deposed ex-President Abdalá Bucaram, whose political party had sided with Gutiérrez and helped derail attempts to impeach him in late 2004. The new Supreme Court dropped charges of corruption pending against the exiled Bucaram, who soon returned to the politically unstable country. The corruption evident in these maneuvers finally led Quito's middle classes to seek the ousting of Gutiérrez in early 2005. In April 2005, the Ecuadorian Armed Forces declared that it "withdrew its support" for the President. After weeks of public protests, Gutiérrez was overthrown in April. Vice President Alfredo Palacio assumed the Presidency and vowed to complete the term of office and hold elections in 2006.

In 15 January 2007, the social-democrat Rafael Correa succeeded Palacio as President of Ecuador, with the promise of summoning a Constituent Assembly, and bringing focus on poverty.

In November 2009, Ecuador faced an energy crisis that led to power rationing across the country.