a 1963 gas explosion in Indianapolis
... that a 1963 gas explosion in Indianapolis during a Holiday on Ice show was one of the worst disasters in Indiana history?
... that <b id="mwBnA"><a href="./1963_Indiana_State_Fairgrounds_Coliseum_gas_explosion" id="mwBnE" rel="mw:WikiLink" title="1963 Indiana State Fairgrounds Coliseum gas explosion">a 1963 gas explosion in Indianapolis</a></b> during a <a href="./Holiday_on_Ice" id="mwBnI" rel="mw:WikiLink" title="Holiday on Ice">Holiday on Ice</a> show was one of the worst disasters in Indiana history?