Fossils of the oldest known sexually reproducing organism, Bangiomorpha pubescens, first appeared in the Stenian.- Caribbean (Wikipedia)
The Caribbean (/ˌkærɪˈbiːən, kəˈrɪbiən/ KARR-ih-BEE-ən, kə-RIB-ee-ən, locally /ˈkærɪbiːæn/ KARR-ih-bee-an; Spanish: el Caribe; French: les Caraïbes; Dutch: de Caraïben) is a subregion of the Americas that includes the Caribbean Sea and its islands, some of which are surrounded by the Caribbean Sea and some of which border both the Caribbean Sea and the North Atlantic Ocean; the nearby coastal areas on the mainland are sometimes also included in the region. The region is south-east of the Gulf of Mexico and Northern America, east of Central America, and north of South America.
- United States (Wikipedia)
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. It is the world’s third-largest country by both land and total area. The United States shares land borders with Canada to its north and with Mexico to its south. It has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 331 million, it is the most populous country in the Americas and the third most populous in the world. The national capital is Washington, D.C., and the most populous city and financial center is New York City.