Publishing in the journal Nature in 1964, Bear and Thomas proposed a name for the scent brought on by rain. They called it “petrichor,” a blend of the Greek words petra, rock, and ikhor, the blood of the gods in Greek mythology. But the scientists acknowledged that they were not the first to identify the stormy smell. They were not even the first to extract it. In fact, what they had dubbed petrichor was already a signature fragrance produced in Kannauj, India.