Why do we roll out a red carpet for special guests?

The red carpet treatment dates back to the 1930s, when a carpet of that colour led passengers to a luxurious train, the Twentieth Century Limited, which ran between New York and Chicago.

Red carpet unfolded

The Twentieth Century was the most famous in America and was totally first class with accommodation and dining car menus that were considered the height of luxury. Walking the red carpet to the train meant you were about to be treated like royalty.