I want to know the answer to the following question:
When did Pantages open his movie houses?
All the background I'm provided with is that "The theaters he built for Pantages in Seattle have been either demolished or converted to other uses, but many other theaters survive in other cities of the U.S., often retaining the Pantages name; Seattle's surviving Paramount Theatre, on which he collaborated, was not a Pantages theater.". Is that enough to answer the question?