There's no country in existence that hasn't had multiple extremely evil events in their past. Just a few quick examples would be the Unit 731, the Native Americans incident, people enslaving their fellow countrymen, the years of lead, the St. Bartholomew's Day incident and countless others. The severity of the ones I mentioned vary, but they should serve as decent examples.
If a country hasn't done anything evil, they either rebranded themselves or they're good at hiding it.
A short side note: Apparently it would actually cost 171€ to get my phone fixed. The price of 140€ didn't take taxes into account... This is just ridiculous considering how the damage can only be caused by a hardware defect.