The guillotine (vertical sliding) window is thought to have originated in the Netherlands. However, the first written document on the subject is from England and is dated 1669. Sir Christoper Wren tells London carpenter Thomas Kinward to put a rope and pulley on the window in the Queen's sitting room. In this way, the traditional mechanism that allows the sash to stop in the desired place and the window to be opened easily without using any force was invented.
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