person · two-date diff
John L. Hennessy: what changed between and
Between and , John L. Hennessy's record did not change: 1 fact held on both days.
state as of · state as of · timeline · markdown · JSON
Replaced (0)
the same fact with a different valueNo fact changed value between the two days.
Added (0)
held on , not on Nothing began between the two days.
Ended (0)
held on , not on , and not replacedNothing ended between the two days.
Unchanged (1)
1 claims held on both days: chair of 1.