No founding entity, organisation or first observance has been documented for National Tyler Day. The day circulates on July 12 and has been marked on that date by a regional newsroom and by a public university, but the record contains no act that brought it into being.
A president who took the office by improvising
William Henry Harrison died just after midnight on April 4, 1841, thirty-one days into his term. The Constitution did not say whether his vice president became president or merely did the job. John Tyler kept Harrison's cabinet, took a second oath in front of them, and moved into the White House within a week of the funeral.
His opponents called him His Accidency. Every vice president who has risen to the presidency since has followed his example anyway.


