they conferred some social status, such as those of civil service and colonial officials, judges and barristers. After the section dealing with the current owner of the property, there usually appeared a section entitled Lineage which listed, not only ancestors of the owner, but (so far as known) every male-line descendant of those ancestors. Contemporary status The Great Depression of British Agriculture at the end of the 19th century, together with the introduction in the 20th century of increasingly heavy levels of taxation on inherited wealth, put an end to agricultural land as the primary source of wealth for the upper classes. Many estates were sold or broken up, and this trend was accelerated by the introduction of protection for agricultural tenancies, encouraging outright sales, from the mid-20th century. So devastating was this for the ranks formerly identified as being of the landed gentry that Burke's Landed Gentry began, in the 20th century, to include families historically in this category who had ceased to own their ancestral lands. The focus of those who remained in this class shifted from the lands or estates themselves, to the stately home or "family seat" which was in many cases retained without the surrounding lands. Many of these buildings were purchased for the nation and preserved as monuments to the lifestyles of their former owners (who sometimes remained in part of the house as lessees or tenants) by the National Trust for Places of Historic Interest or Natural Beauty. The National Trust, which had originally concentrated on open landscapes rather than buildings, accelerated its country house acquisition programme during and after the Second World War, partly because of the widespread destruction of country houses in the 20th century by owners who could no longer afford to maintain them. Those who retained their property usually had to supplement their incomes from sources other than the land, sometimes by opening their properties to the public. In the 21st century, the term "landed gentry" is still used, as the landowning class still exists, but it increasingly refers more to historic than to current landed wealth or property in a family. Moreover, the deference which was once automatically given to members of this class by most British people has almost completely dissipated as its wealth, political power and social influence have declined, and other social figures such as celebrities have grown to take their place in the public's