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Publication coverage: Varies by title. 1940s to present.Deep coverage of environmental aspects of agriculture, ecosystem ecology, energy, renewable energy sources, natural resources, marine & freshwater science, geography, pollution & waste management, environmental technology, environmental law, public policy, social impacts, urban planning, and more.
Publication coverage: 1800s - present (varies by country; updated weekly)The largest public patent database on the internet, Espacenet contains more than 100 million patent documents from more than 90 countries including Canada and the U.S., plus 2 million records for non-patent literature cited in EPO search reports.
Publication coverage: c.1800-1920This collection includes monographs, pamphlets, periodicals and broadsides from the 19th and early 20th centuries. The material reflects political, social and gender issues in the United States, including religion, race, education, employment, marriage, sexuality, home and family life, health, and pastimes.