Folic acid first became the focus of various research lines in the 1930s. Initially, it was also known under the name anti-anemia factor or lactobacillus casei and growth factor, because the vitamin only received its current title in 1941, the common year of its origin. The term comes from Latin, where folium means leaf. A name that was derived from the process of obtaining folic acid, because it was knowingly isolated for the first time from around four tons of dry spinach leaves. Subsequently, in 1996, scholars discovered the structure of the vitamin and studied all of its functions.