The first known and recorded
heads of government in the
history of Puerto Rico were the
caciques, the
tribal chiefs of the natives known as
Taínos that inhabited the island before the arrival of Spaniards. It is believed that the
cacique rank was apparently established through democratic means. His importance in the tribe was determined by the size of his tribe rather than his
warlord skills, since the Taínos were mostly a pacifist culture.
Agüeybaná I is the most-well known cacique as he was the one governing all others when the Spaniards arrived in 1493 although
many others existed during his period, as well as before and after him.
Spanish colonial era When the
Spanish Empire colonized Puerto Rico during the 16th century, the Spanish conquistador
Juan Ponce de León established himself as the island's first governor.
Vicente Yáñez Pinzón had been appointed to take the position of
Captain General of the City of Puerto Rico prior to the island's colonization, but he never performed this function. As part of the Spanish Empire, the
Spanish monarchy was in charge of appointing the governor of Puerto Rico. The person selected was in charge of the island's development and wealth and was responsible for reporting the colony's status to the government in Spain. The first native
Puerto Rican to perform the function was
Juan Ponce de León II, grandson of the conquistador, who served as interim governor in 1579. After 1580 Puerto Rico's government was established as the
Captaincy General of Puerto Rico, and subsequent governors held the office of Captain General as well.
As a United States unincorporated territory On July 25, 1898, at the outbreak of the
Spanish–American War, Puerto Rico was invaded by the
United States. Following the conclusion of the war, Spain was forced to cede Puerto Rico, along with
Cuba, the
Philippines and
Guam, to the United States under the
1898 Treaty of Paris. Puerto Rico began the twentieth century under the military rule of the United States with officials, including the governor, who were appointed by the
President of the United States. In 1900,
William McKinley signed the
Foraker Act as a
United States federal law, which established civilian (limited popular) government on Puerto Rico. The new government had a
governor and an executive council appointed by the President, a
House of Representatives with 35 elected members, a judicial system with a Supreme Court, and a non-voting Resident Commissioner in Congress. At that time,
Luis Muñoz Marín became the first democratically elected governor. The current governmental structure was established under the
Constitution of the Commonwealth of Puerto Rico, ratified in 1952. Sitting governor
Luis Muñoz Marín was re-elected as the first governor under the Constitution. Under Article IV of the Constitution, the governor continues to be popularly elected every four years and is the head of the Commonwealth's
executive branch. ==Powers==