Hindi literature (Hindi: हिन्दी साहित्य, Hindi Sahitya) includes literature in the various Central Zone Indo-Aryan languages which have writing systems. It is broadly classified into four prominent forms (styles) based on the date of production. They are ; * Vir-Gathas (poems extolling brave warriors) – 11th–14th century * Bhakti era poems (devotional poems) – 14th–18th century * Riti or Srngar poems (poems of romance) – 18th–20th century * Adhunik literature (modern literature) – 20th century onwards