Which trading venue was the center of the 1873 stock-market crash known as the Long Depression's opening crisis?

The Vienna Stock Exchange was the trading venue at the center of the 1873 stock-market crash known as the Panic of 1873.

The crisis began with a speculative boom in Austria-Hungary and culminated in the Vienna stock-market crash of May 9, 1873. The boom had been supported by railway expansion, construction, easy credit, and expectations of continuing economic growth. When confidence broke, share prices collapsed.

Financial stress spread internationally. The failure of Jay Cooke & Company in the United States in September 1873 helped trigger a major American panic, while banks and businesses in Europe and North America faced bankruptcies and falling investment.

Historians sometimes debate the exact boundaries and causes of the resulting Long Depression. The term can refer to a prolonged period of deflation and weak growth rather than one uninterrupted depression identical in every country.