The 10th (X) Central American and Caribbean Games were held in San Juan, Puerto Rico from July 11 to July 25, 1966. These games were one of the largest ever with a total number of 1.689 athletes from eighteen participating nations. The Central American and Caribbean Games are the oldest continuing regional games. ... San Juan, the Spanish for Saint John, is a common toponym in parts of the world where Spanish is or was spoken: Argentina San Juan Province San Juan, Argentina, the capital of that province Cuba San Juan Hill Mexico San Juan, Campeche San Juan, Chihuahua San Juan, Coahuila San Juan... July 11 is the 192nd day (193rd in leap years) of the year in the Gregorian Calendar, with 173 days remaining. ... July 25 is the 206th day (207th in leap years) of the year in the Gregorian calendar, with 159 days remaining. ... 1966 (MCMLXVI) was a common year starting on Saturday (the link is to a full 1966 calendar). ...