Canada has a strong tradition of preserving open spaces and calling them "parks. The definition, however, has changed over the years, following the patterns of settlement across the country and the evolving patterns of life. Definition and character of planned urban park space has changed with time, beginning with former military grounds and forts, cemetery grounds and smaller green spaces along transportation lines. Landfill sites were often reclaimed as green parks. The 1950's saw the expansion of recreational facilities as the priority of park space, supplemented by the donation of private estates for the public good. In our present time, a balance is being sought between preservation of natural space and the provision of facilities for human enjoyment and comfort.