Doctor Manuel Iturralde, president of the National Committee for the ephemeris, said that for the existence of the human being is absolutely necessary a terrestrial system that can stand by itself and for such a purpose is necessary to be updated on the planet.

The 169 municipalities of the Caribbean Island will develop conferences, competitions, workshops and other actions linked to the topic, as well as the publication of books, and pamphlets, says a wire from the Cuban News Agency.

(Tiempo21.cu)