<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngokunqoba okunqumayo ngo-1865 phezu kwabashisekeli benkululeko baseNingizimu eMpini Yombango, i - United States yaba isizwe esibumbene nesinamandla esinohulumeni kazwelonke oqinile. Ukuvuselelwa kwaletha ukuphela kobugqila obungokomthetho kanye nokuba yisakhamuzi kwababekade beyizigqila, kodwa amandla abo amasha ezombusazwe abuyiselwa emuva phakathi neminyaka eyishumi, futhi baba izakhamuzi ezisezingeni lesibili ngaphansi kohlelo lwe Jim Crow lokuhlukaniswa okujulile okwakuzohlala iminyaka engama-80 kuya kwengu-90 elandelayo. Ngokwezombusazwe, ngesikhathi soHlelo Lweqembu Lesithathu noHlelo Lweqembu Lesine isizwe sasibuswa kakhulu ngamaRiphabhulikhi ngaphandle koMengameli ababili beDemokhrasi. Ngemva kuka-1900 nokubulawa kukaMongameli uWilliam McKinley  <response>: , i-Progressive Era yaletha izinguquko kwezepolitiki, kwezamabhizinisi nakwezenhlalo isib., izindima ezintsha kanye nokwandiswa kukahulumeni kwezemfundo, isimo esiphakeme sabesifazane, ukunqanyulwa kokweqisa kwezinkampani, kanye nokwenziwa kwesimanje kwezindawo eziningi zikahulumeni nomphakathi. AmaProgressives asebenza ngezinhlangano ezintsha zesigaba esiphakathi ukuze alwe nenkohlakalo namandla angemuva kwezigcawu ezinhlangano zezinhlangano zezombusazwe zombuso kanye nemishini yamadolobha amakhulu. Bafuna futhi bathola ilungelo labesifazane lokuvota, nokuvinjelwa kotshwala ezweni lonke kusukela ngo-1920 kuya ku-1933. 