The harbour of Ostend continued to expand because the harbour dock, as well as the traffic connections with the hinterland, were improved. In 1838, a railway connection with Brussels was constructed. Ostend became a transit harbour to England in 1846 when the first ferry sailed to Dover. An October 1854 meeting of American envoys led to the Ostend Manifesto. Important for the image of the town was the attention it started to receive from the Belgian kings Leopold I and Leopold II. Both monarchs liked to spend their holidays in Ostend. Important monuments and villas were built to please the Royal Family, including the Hippodrome Wellington horse racing track and the Royal Galleries. The rest of aristocratic Belgium followed and soon Ostend became known as "the queen of the Belgian sea-side resorts".