Web of Science's Science Citation Index now goes back to 1900

Recently, the UMass Amherst Library sent out a press release to announce new electronic resources. Here is one item, particularly pertinent to researchers in the sciences:

• Web of Science’s Century of Science makes available 850,000 older, twentieth century scientific journal items in one place for the first time from 262 journals. This comprehensive collection is fully searchable, with complete bibliographic data, cited reference data and navigation, and direct links to the full text. Century of Science provides comprehensive backfile and cited reference data from 1900 to 1944. This important tool allows researchers to discover which articles were highly cited during that time period, what journals they were published in, and trace a topic through over one hundred years of research literature.

This is actually just the extension of our Science Citation Index subscription back to 1900, a great thing, but not a separate title. So now you can find out that Albert Einstein's 1935 article in Physical Review, v. 47, no. 10, p.777-780, has been cited at least 2,698 times, and by whom!