The Pro Grigioni Italiano (Pgi) association, which was established in Chur in 1918, is committed to promoting the values and culture of the Italian-speaking population in the Canton of Graubünden. A postal card is being issued to mark its 100th anniversary. Four valleys, 15 municipalities, 53 villages: around 24,000 people in the Canton of Graubünden speak Italian. Around half of them live in the valleys of Puschlav, Bergell, Misox and Calancatal, sometimes long distances apart. They often refer to themselves as the "minority of the minority". Graubünden is the only Swiss canton where three languages are spoken. As a result of this, and due to its outline, which is reminiscent of Switzerland as a whole, it is also known as "Little Switzerland".