The 20th century has witnessed more momentous upheaval than any previous period in recorded history. Now, in the last decade of the century, the pace of change is increasing. Already the 1990s have seen revolution in Europe, political ferment in Britain and warfare stretching from the Balkans to the Middle East. Uncertainty dominates the world economy, whilst Britain struggles to rebuild from recession and devaluation. This latest edition of Pears not only provides a background to our ever-changing world but also continues to provide a family encyclopaedia.