Iron(II) sulfate was used in the textile industry for centuries as a dye fixative. It is used historically to blacken leather and as a constituent of ink. The preparation of sulfuric acid ('oil of vitriol') by the distillation of green vitriol (Iron(II) sulfate) has been known for at least 700 years. Together with other iron compounds, ferrous sulfate is used to fortify foods and to treat and prevent iron deficiency anemia. Constipation is a frequent and uncomfortable side effect associated with the administration of oral iron supplements. Stool softeners often are prescribed to prevent constipation. Ferrous sulfate was used in the manufacture
Country Today into Dial Global's portfolio of formats, and "Dial Global Local" ceased to exist as a brand name. However, most of the former Dial Global Local formats are still offered to affiliate stations in the same manner in which they were previously offered. Country Today is no longer offered under that name, but continues as a Local version of Dial Global's Mainstream Country format. Country Today Mainstream Country (Local Version) (formerly known as Country Today) is a 24-hour music format produced by Dial Global, and formerly by Waitt Radio Networks and then by the now-defunct Dial Global Local. Its playlist is