The army sacked Constantinople.
Thaddeus Stevens and Charles Sumner were two most outspoken radical republicans.
hope this helps!
The Boxer Rebellion should be the answer. The boxer rebellion was the rebellion that was an anti-colonialism/colonist/Christian uprising that took place near the end of the Qing Dynasty, so I assumed that it must be the answer as it is the closest and the Taiping rebellion occurred in the 1850s.
The best answer that would complete the sentence is that the stimulus or the money invested in the act in order to prevent the recession that would be compared to the Great Depression's is relatively very small. Also, the policy's uncertain effect on the economy.