Interlingua was created in 1922 as an international auxiliary language. It was originally known as Occidental until 1949 when it was renamed Interlinque. It was popular in the years up to, during, and shortly after the Second World War, but declined thereafter. The language was created by Edgar de Wahl, a teacher from Tallinn, Estonia and published before it was complete as a response to a call from the League of Nations for an international language. The vocabulary is based on already existing words from various languages and a system of derivation using recognized prefixes and suffixes, making it easy to recognize the meaning by people speaking various European langauges.
You can communicate in Interlingua. You are at a distinct advantage in the global market if you are bilingual. Communication skills developed while learning Interlingua can improve your interpersonal skills in your native langauge as well. it fosters an understanding of the interrelation of language and human nature.