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
Today Is the Day for the awards for Best Director and Best New Filmmaker. In 2006 Steve Austin launched his own record label, SuperNova Records, which was founded in order to properly release material by Today Is the Day, among others. As of April 2007, SuperNova has released DVDs of live Today Is the Day shows from 1995 and 1996, as well as reissuing a remastered version of their "Willpower" record, previously released on Amphetamine Reptile Records. The label also released a film Axis of Eden based on the album of the same name. The label has been inactive ever since the band signed