Which is an important difference between the freedom rides and unauthorized marches?
freedom rides were primarily carried out by northerners riding through the south, while unauthorized marches were usually carried out by southerners.
freedom rides took place only in the deep south, while unauthorized marches were held throughout the south.
freedom rides were testing whether an existing law would be upheld, while unauthorized marches were intentionally breaking an unjust law.
freedom rides were intentionally provoking violence, while unauthorized marches were not

for starters, there is the structural trend of rising primary government expenditure as a share of gdp, which reached 36% in 2014, up from 22% in 1991. this increase reflected a political desire to address the poverty and inequality that had gone unaddressed during previous decades. to support the increase, brazil’s government increased taxes on consumption and promoted progress toward labor-market formalization. nonetheless, public investment, particularly in infrastructure, took a hit. in fact, with the exception of the 2005-2008 period, total investment as a share of gdp has remained below 20% since 1991.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).