1899 - July 30 – The Harriman Alaska Expedition ends successfully.

The Harriman Alaska Expedition of 1899 was a landmark scientific and exploratory endeavor led by railroad magnate Edward Harriman. Departing in June aboard the steamship George W. Elder, the expedition ventured along the Alaskan coast, reaching as far as the Bering Strait. The goal was to study and document the natural history, geology, and indigenous cultures of Alaska, which was then a relatively unknown and remote territory. The expedition included a large contingent of scientists, artists, and photographers, as well as notable figures like naturalist John Muir and photographer Edward S. Curtis.

The expedition concluded on July 30, 1899, having achieved significant scientific and cultural discoveries. The team collected numerous specimens of flora and fauna, some of which were previously unknown to science. The expedition's findings contributed greatly to the understanding of Alaska's biodiversity and its native peoples. The expedition's success also helped to raise awareness of conservation issues and the need to preserve Alaska's natural beauty and resources.