What year did bill haley and the comets place the first rock and roll song on the billboard charts?

Spencer's blog claims that national parks are the best vacation destinations. which evidence is best for developing his claim? a personal account from a park visitor who describes positive adventures at grand canyon and yellowstone parks an interview with a travel agent who advertises cruises, eco-tours, and whitewater rafting trips a chart that compares the number of national parks in the eastern united states to that in the western states a study that proves adults who take yearly vacations have lower blood pressure than those who do not

Why did emerson most likely include the quotation from john brown speech

1. which one of the following is not one of the instrument families in the standard symphony orchestra? strings woodwinds brass sopranos