Statistics for occurrence #1 of “Benjamin Waterhouse” in entry 3913 of Harper's Encyclopedia of United States History:

...medical journal, the , appears1797 Medical department of Dartmouth College established1798 First general quarantine act passes CongressFeb. 23, 1799 First vaccination in United States performed by Benjamin Waterhouse , professor in Harvard College, on his four childrenJuly, 1800 First vaccine institute in the United States organized by James Smith in Baltimore, Md1802 published by John Redman Coxe1806 Ovar...
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