- August 1-9, 1907 – Robert Baden-Powell holds the first (experimental) Scouting encampment at Brownsea Island. He began setting camp up on July 29, 1907.
- August 6, 1900 – William "Green Bar Bill" Hillcourt, the father of American Scouting, is born in Denmark.
- August 8, 1909 – Scout camp half-held on the Training Ship Mercury (there was only room for 50 boys but it had earlier been advertised as a camp for the top 100 boys, so half camped on land then they switched half-way through), which led to the formation of Sea Scouts.
- August 21, 1912 – Arthur Rose Eldred becomes the first Eagle Scout in the history of Boy Scouts of America.
- August 22, 1908 – First official Scout camp at Humshaugh, England. The Scouting movement didn't officially exist during the 1907 Brownsea Island camp -- this was the first camp attended by registered Scouts.