July 1 – The Kuomintang begins the Northern Expedition, a military unification campaign in northern China. July 3 – A Caudron C.61 aircraft, operated by Compagnie Internationale de Navigation Aérienne, crashes in Czechoslovakia. July 9 – In Portugal, General Óscar Carmona takes power in a military coup. July 10 – A bolt of lightning strikes Picatinny Arsenal in New Jersey; the resulting fire causes several million pounds of explosives to blow up in the next 2–3 days. July 15 – Bombay Electric Supply and Transport Company in India introduces motor buses. July 26 – The United States National Bar Association is incorporated.
july 1 – the kuomintang begins the northern expedition a military unification campaign in northern china july 3 – a caudron c61 aircraft operated by compagnie internationale de navigation aérienne crashes in czechoslovakia july 9 – in portugal general óscar carmona takes power in a military coup july 10 – a bolt of lightning strikes picatinny arsenal in new jersey; the resulting fire causes several million pounds of explosives to blow up in the next 2–3 days july 15 – bombay electric supply and transport company in india introduces motor buses july 26 – the united states national bar association is incorporated