I cling to the basic set of tenets laid out in Tom Wolfe's 'New Journalism' - to get out there like the great French novelists of the 19th century and study life. I am a Tom Wolfe fan of the first order.

Real writers - serious writers with serious subjects, who earn their living at it - all seem to write in small rooms with that knotty-pine 1974 look on the top-floor rear of their houses. Rooms with views.

Girls like Diana Spencer, armed with nothing more than a guinea-pig-rearing certificate, proud to say in that old Sloane way that she was 'as thick as two short planks,' became the exception as girls from Benenden and Downe House started to fast-track towards the City and law, consultancy, media and the arts.

Marmite - like that other little black-jar job, Bovril - is so much a Mark 1 staple-of-Empire brand, so much part of the Edwardian world of enamel advertising signs, the history of grin-and-bear-it industrial food.

The library was one more essential in the parade of rooms in a big 18th-century house - and part of the required kit ever afterwards. The important thing was to have the books, not actually read them.

In the 1940s, cigarettes would be shown in classy situations, endorsed by celebrities - real A-list Hollywood stars in America - the ads would make claims about tobacco quality or manufacturing science and, bizarrely, some brands had what almost amounted to health claims.

By the 1980s, practically no one under 60 in the real civilian world wore hats for anything except weddings, funerals or Ascot. Hats had been in competition with hair, and hair had won. Thirty years before that, Brits of all classes and ages wore hats all the time.