1922 - Discovery of Tutankhamen's tomb
1925 - The Great Exhibition held in Paris
1926 - Harrods, the London store, mounts higely successful display of Beetle products, made from a form of thiourea urea formaldehyde
1926 - First public demonstration of television
1926 - National Grid for electricity is established fuelling the production of plastic plugs and switches
1927 - Creation of the BBC
1927 - Polyacrylates, aka acylic or Perpex, discovered
1929 - Bakelite Ltd gains the largest order of phenol formaldehyde for the Siemens Number 162 telephone
1929 - Polystyrene created
1929 - Museum of Modern Art opens in New York
