Aug 16, 1858
First transatlantic telegraph message
On August 16, 1858, Queen Victoria sent a 99-word message of congratulation to President James Buchanan over the freshly-laid transatlantic telegraph cable. The transmission took sixteen and a half hours. Before the cable, news between London and New York moved at the speed of a steamship — about ten days. After it, market prices in London and New York could be exchanged the same day. The cable failed within a month from a voltage error, and a working line was not restored until 1866. But the experiment had proven that the financial centers of two continents could trade on the same information.
London–NY arbitrage window: 10 days → 1 dayRead →