Web of Science, 1900-Consists of 3 searchable databases: Science Citation Index Expanded (SCI-Expanded), indexing 5,300 major journals across 164 scientific disciplines covering 1955-Present. Social Sciences Citation Index (SSCI), indexing 1,700 journals spanning 50 disciplines and selectively indexing relevant items from over 3,300 scientific and technical journals covering 1956-Present. And, Arts and Humanities Citation Index (A&HCI), indexing 1,100 arts and humanities journals and selectively indexing relevant items from over 6,800 major science and social science journalscovering 1975-Present. Abstracts with links to full text that is available through other University of Nebraska-Lincoln databases.