All about History by http://www.puerto-de-manzanillo.com.mx/
The modern history of Manzanillo dates back to the early years of the 16th century when Hernan Cortes arrived in search of a good harbor. He found it in the Salagua Bay about 7 miles north of Manzanillo. From there the spaniards explored the Pacific Ocean and build up a cargo route to Asia.
Soon Portuguese pirates discovered the activity and a 300 year history of pirate attacks and seabattles began. French, Spanish, Portuguese and English pirates had been involved in looting and assaulting villages and cargo ships until the 19th century. Within many others the famous English pirate Sir Francis Drake was active in the Manzanillo Bay.
In 1825 todays port of Manzanillo was opened and only 50 years later in 1873 the village of Manzanillo close to the harbor became a city. The next 30 years the port of Manzanillo got more and more important, a railroad connected the port to the states capita Colima and later to the city of Guadalajara in Jalisco. The port became the largest on Mexicos Pacific coast until today.
During the Mexican revolution for about 10 days during 1915 the city of Manzaillo became the states capital.
The tourism boom in Manzanillo began in the 1960 - 1970 when the Pacific Coast with famous travel destinations like Puerto Vallarta or Acapulco had been discovered by Hollywood.
One of the first luxury hotels was the Las Hadas, which is located on the Santiago Peninsula. The las Hadas resort as well was the place, where the movie "10" with Bo Derek was filmed.
Manzanillo developed to the "Sailfish Capital of the World" featuring year by year 2 or more international fishing championships and tournaments.
Hernan Cortes visited in 1522 first time Manzanillo.