n response to Darcel:
Trinidad and Tobago, like many other countries and territories with combined names, such as Antigua and Barbuda, St Vincent and the Grenadines and Saint Kitts and Nevis consists of two separate areas (in this case, Islands) under one government.
Trindad and Tobago are islands in the Carribean Sea. The name of Trinidad comes from the Spanish 'trinidad' meaning trinity. It was named by Columbus on sighting three peaks. Tobago comes from the Carib word 'tavaco', which means tobacco pipe.