The years were 1837-1901 it was the era queen Victoria ruled and it was a long period of peace.
Answer:
white southerners must promise not to practice slavery anymore
Explanation:
<span>Northerners lost interest in Reconstruction was because "B. Northerners were focused on the political corruption plaguing the nation," since this was during the Progressive Era. The Progressive Era was a period of widespread social activism and political reform across the US, from the 1890s to the 1920s. The main objectives was to eliminate problems caused by industrialization, urbanization, immigration, and corruption in government.</span>
