On Sunday the 3rd of March the Friends of Vinegar Hill and Blacktown City Council will hold their annual commemoration of the March 1804 uprising and breakout by mostly Irish convicts from the Castle Hill government farm. That breakout led to a clash with the Colonial Militia resulting in about twenty convicts being killed with nine others being hanged in following days. The clash came to be called the Battle of Vinegar Hill, after the 1798 battle in Ireland.
it will last about an hour, will include a wreath laying - a flag raising - an address by dignitary (to be decided). This annual event is organised by Blacktown City Council and the Friends of Vinegar, for more information