The South Dakota State Constitution - Patrick M. Garry - Google Books

https://books.google.de/books?id=uin-AgAAQBAJ&pg=PA282#v=onepage&q&f=false

South Dakota was the first state in the nation's history to adopt the Initiative and Referendum, making it permissible for the people to initiate a constitutional amendment, on a statewide level in 1898. While it continues to be a controversial procedure,…