Registan became the central square of Samarkand in the 14th century. The word "Registan" can be translated as "a sandy place". Earlier there flowed a canal forming sand and silt deposits. Six streets crossed at Registan. In the time of Temur the square was used as a commercial and craft center and Ulugbeg made it a spiritual centre. Ulugbeg constructed a majestic madrasah and Sufi khanaka with a huge dome. By the 17th century old buildings of Registan had been in collapse and the governor of Samarkand Yalangtush- biy built Sher-Dor madrasah instead of Ulugbeg's khanaka and later Tillya-Kari Madrasah.