"National Aerobatics Day is the perfect day to host an aerobatic camp, a BBQ, a practice session, or to share videos of aerobatic activity online. With over 40 chapters nationwide and two international chapters, IAC members will be organizing these types of activities and others to engage the public and general aviation pilots in aerobatics."
Source: Jim Bourke, President of the International Aerobatics Club (IAC), commenting as they established the inaugural National Aerobatics Day event.