During the Samma dynasty (1351-1521), Sindh produced notable scholars and poets; the Sammas were some of the original inhabitants of Sindh. This era has been called the "original period for Sindhi poetry and prose". Mamui Faqirs' (Seven Sages) riddles in verse are associated with this period. Ishaq Ahingar (Blacksmith) was also a notable contemporary poet. Sufi scholar and poet Qazi Qadan (died 1551) composed Doha and Sortha poetry, and was a landmark in the history of Sindhi literature. Shah Abdul Karim Bulri, Shah Lutufullah Qadri, Shah Inayat Rizvi, Makhdoom Nuh of Hala, Lakho Lutufullah, and Mahamati Pirannath are among other authors of Sindhi mystic, romantic and epic poetry.