71.   He graduated from the University of Edinburgh, where he also earned a doctorate in engineering.

72.   He graduated from Warsaw University, where he also earned a doctorate in philosophy.

73.   He has said he would have liked to earn a doctorate at the Massachusetts Institute of Technology.

74.   He left Germany with a law degree, and went to France and Switzerland to earn a doctorate in law.

75.   He earned a doctorate in law from the University of Marburg.

76.   He earned his doctorate at Harvard.

77.   He earned his doctorate from the university, then moved to the University of California at Berkeley, where he began teaching mathematics.

78.   He earned his doctorate in geography at the University of Chicago with a dissertation on railroads in the Chicago area.

79.   He earned his doctorate in music at the University of Massachusetts, where he now teaches.

80.   He jumped bail and fled to England, where he earned a doctorate from the London School of Economics.