Anyone who paid attention in history classes at school will need little background to the events of Wolf Hall. The key events of the story take place over just less than a ten year period from the 1520s to the 1530s. Mantel has taken what is, supposedly, Britain's best loved history topic, Henry VIII and his divorce from Catherine of Aragon, marriage to Anne Boleyn and the resulting split with Rome and has melded it into a compelling story.
She has obviously had some of her work done for her - the key dramatic events, characters, plots and intrigue are fairly heavily based in fact, but what Mantel has done is to breathe life and substance into the historial figures to make them loveable, hateable, complex characters. At the centre of her book stands Thomas Cromwell, a man from humble origins who rose to unprecedented power in England as Henry's chief minister. Cromwell is beautifully portrayed and his personal relationships, be they loving, tragic or political are fascinating reading. The relationships with Wolsey and More in particular are executed wonderfully (no pun intended in the latter case).
My only grumble with the book were that some events are included, but skated over in short passages and other events are included, but drag a little. This is probably an inevitable part of a historical novel covering such a long period of time; you can't simply leap forward 2 years and avoid the need to understand certain intervening events. However, whilst this slows the pace of the book in places, I enjoyed the book so much that it didn't particularly spoil it for me (indeed, those who prefer a fast paced novel are probably not going to enjoy Wolf Hall).
The book ends shortly after the death of Thomas More, and I can't be only one who wonders (and hopes) whether we might yet see a second, "decline and fall" book. I'd certainly love to read it.