On April 19, 1775, a group of American farmers serving as Minute Men began the American
Revolution when they fired at the British at Lexington and Concord, Massachusetts. Some
decades later, Ralph Waldo Emerson called the first shot of the Revolution "the shot heard
round the world." Emerson used the phrase in his "Concord Hymn," which was sung on April
19, 1836, at the unveiling of a monument honoring the Minute Men's stand.

Read the passage. when mother’s fever persisted for a week, father summoned our family doctor. dr. blakemore applied leeches to mother’s skin in hopes of reducing the amount of blood in her body. despite the doctor’s efforts, she languished in bed for three more days before her appetite returned and she requested a thin broth. our dear cook, mrs. davis, prepared the broth and delivered it to my mother directly, eager to ease her discomfort. what can readers infer about the time period of the passage?