In 1493 Ivan III around the Kremlin have removed all the wooden
buildings, to avoid fires. And to trade near the Eastern wall there was
an area called the Trading or Bargaining. It also was called a Fire
because of the frequent fires here. In the 16th century Red square was
called Trinity, in the name of Trinity Church, located in the southern
part of the square. In the years 1508-1516 along the Kremlin wall for
defensive purposes was dug ditch width of more than 36 m and 10 m deep,
which filled with water. In the 17th century across the ditch built
bridges to Nikolsky and Spassky gate. The square was called red, which
meant beautiful. Gradually, the Red square in Moscow became not only
commercial, but also political center.
Извени тут 4 предложения. Ок?