in 1877 an Italian astronomer named Schiaparelli noticed som
in 1877 an Italian astronomer named Schiaparelli noticed some dark shapes on the surface of Mars.He called them"canali",which,by the way,does not mean canals in English.Later an American named Lowell sudies these shapes.He said that intelligent beings,which meant some from of life able to think and understand,had put them there.