History20th centuryPoland (Lwów, now Lviv, Ukraine)low confidence

The Scottish Café was a café in Lwów where mathematicians of the Lwów School of Mathematics recorded problems in a notebook known as the Scottish Book.

Notes on verification

Confirmed by multiple independent, high-quality sources including MacTutor History of Mathematics and Wikipedia articles on both the Scottish Café and the Scottish Book, all consistent in details.

Sources