The fertile land in Texas, temperate climate and sufficient sunlight were the ideal site for the development of plantations, so the southern slave 's master set his expansions to neighbouring Texas. Politically, southern plantations are trying to expand their seats in the senate in order to maintain their political status. Since the constitution requires only two senators per state, expanding the number of slave states through territorial expansion is a way for the south to maintain its political power. In this respect, southern plantation slave-owners struggle to achieve territorial expansion. For the northern bourgeoisie, the demand for market, raw material and labor is also increasing with the rapid development of the capitalist economy, and it is also hoped that more land will be occupied by external expansion, to expand the commodity market, to acquire more raw materials and to further expand the capitalist industrial and commercial economy. With fertile land in California, there is abundant rainfall and plenty of sunshine
The fertile land in Texas, temperate climate and sufficient sunlight were the ideal site for the development of plantations, so the southern slave 's master set his expansions to neighbouring Texas. Politically, southern plantations are trying to expand their seats in the senate in order to maintain their political status. Since the constitution requires only two senators per state, expanding the number of slave states through territorial expansion is a way for the south to maintain its political power. In this respect, southern plantation slave-owners struggle to achieve territorial expansion. For the northern bourgeoisie, the demand for market, raw material and labor is also increasing with the rapid development of the capitalist economy, and it is also hoped that more land will be occupied by external expansion, to expand the commodity market, to acquire more raw materials and to further expand the capitalist industrial and commercial economy. With fertile land in California, there is abundant rainfall and plenty of sunshine