when did they start using drywall instead of plaster
Lath and plaster Lath and plaster is a building process used to finish mainly interior walls and ceilings in Canada and the United States until the late 1950s. After the 1950s, drywall began to replace the lath and plaster process in the United States.
Walls of Jerusalem The Walls of Jerusalem (Arabic: أسوار القدس‎; Hebrew: חומות ירושלים‬) surround the Old City of Jerusalem (approx. 1 km²). In 1535, when Jerusalem was part of the Ottoman Empire, Sultan Suleiman I ordered the ruined city walls to be rebuilt. The work took some four years, between 1537 and 1541.[1][2]