How does the quotation illustrate the new approach used by some reformers to implement social change in the late 1800s and early 1900s?

Innovations in photography helped this 19th century journalist Jacob Riis  improve life for many of his fellow immigrants.Jacob Riis also helped reform housing policy in New York City.Riis’s pioneering use of flash photography brought to light even the darkest parts of the city.Used in articles, books, and lectures, his striking compositions became powerful tools for social reform.Riis became a police reporter for The New York Tribune, covering some of the city's most crime-ridden districts, a job that would would lead to fame and a friendship with police commissioner Theodore Roosevelt, who called Riis "the best American I ever knew".

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

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