It was great to see your listing of the centenary of the death of John Peter Altgeld ("Eagle Forgotten") in your calendar [July 26], but unfortunately you repeated a critical error about the Haymarket anarchists.
They were not executed "for detonating a bomb and inciting a riot." The prosecution which railroaded them stated explicitly that there was no evidence linking these individuals to the bombing. They were killed by the state simply for being outspoken anarchists.
Sadly, the technical legal grounds which Governor Altgeld listed in his pardon, such as government fabrication of evidence and government jury tampering, are still current (cf the recent Judi Bari legal victory).