The scientific method <em>revolutionized the study of human society</em> during the Gilded Age and onward; sparking curiosity within the members of society, and encouraged people to <em>gain knowledge</em>, discover and investigate; causing them to question old credence, and starting to prove them wrong, thus <em>leading to technological advances</em>, and large scale production methods, the inception of intellectual movements and favored <em>drastic reforms in education</em>, thus bringing opportunities to other scope of the population, because racial, ethnic, religious, gender and socioeconomic inequalities still abounded, so it also inspired some reformers to address those inequities in some form.
<span>The three most important empires were Ghana, Mali, and Songhai Empire.<span>The Ghana Empire - was located in south of the Sahara desert and northwest of the Niger River in what is now Mauritania and Mali that lasted from the 6th to the 13th century CE.The Mali Empire - empire that lasted from 12th to 16th century. It was the largest empire in West Africa and with its profound cultural influences on West Africa it allows its language, laws and customs to spread along the Niger River.The Songhai Empire - a state that dominated in the 15th and 16th century. It was one of the largest kingdom in African history. Located on the middle reaches of the Niger River in what is now central Mali and extending west to the Atlantic coast and east into Niger and Nigeria.</span>
</span>
Joseph Stalin was so paranoid that he ordered somewhere between 600,000 and 1.2 million people just for thinking that they are against the regime. The great purge was an extreme evidence of the paranoia.
Vasco Nunez de Balboa was to be believed that he was the first European to see the pacific ocean.