When you enter an ambiguous query in WA, the service tells you how it's interpreting what you entered and offers an alternative. When I entered "Oliver Cromwell," it guessed I wanted biographical information, but also offered information about Cromwell as an historical event, which yielded the screen below:

One unique property of WA is that it is set up to do on-the-fly comparisons when you enter two distinct queries. Here I entered declaration of independence and War of 1812. The resulting chart supplied dates, people and countries involved. If this data ever became as deep as that associated with scientific and mathematical queries, WA could be a godsend to history students:

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I'm not sure why this feature was a priority for the WA developers, but it is fascinating: enter two first names and the service will compare their frequency in the United States now and over history, as this smackdown of Mary vs. Tiffany shows:

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