All info here excerpted from The 2013 Autonomedia Calendar of Jubilee Saints: Radical Heroes for the New Millennium by James Koehnline and the Autonomedia Collective

APRIL 3 JUBILEE SAINT — TERENCE MCKENNA
Sacred substance psychonaut, shamanarchist.

APRIL 3 holidays and festivals:
* Ancient Egyptian FESTIVAL OF MIN.
* ETERNAL RICTUS DAY.
* Iran: SIZDAH-BEDAR: It is unlucky to stay indoors.

ON THIS DATE
1783 — Writer Washington Irving born, New York City.
1860 — Pony Express service begins.
1882 — Quintessential Western outlaw Jesse James shot by Robert Ford.
1924 — American actor, social dropout Marlon Brando born, Lincoln, Nebraska.
1950 — Radical educator, historian Carter G. Woodson born, Washington, DC.
1950 — Radical composer Kurt Weill dies, New York City.
1972 — Showboat politico Adam Clayton Powell dies, Harlem, New York City.
2000 — Entheogen psychonaut & futurist shaman Terence McKenna dies, Hawaii.