The Portuguese people started the age of discovery and made many beneficial and great discoveries and routes to Asian countries for spices, but is there a bad side to the age of exploration?. When the Europeans went exploring, they did a lot of good things but as they were discovering and conquering, the human toll was very heavy because the Europeans slaughtered many people, for example, the slaughter of the Muslim population of Goa. but most severely they started the transatlantic slave trade. They would take west Africans away and put them in mines and other "jobs" in the Americas. So in conclusion, the European age of discovery was a very good thing for trades and routes for goods from other countries but they also created massive murders and problems because of the age of discovery, that means it was good but also very bad for others