Spartan was an oligarchy, Athena was a full democracy
Dr. King's leadership contributed to the overall success of the civil rights movement in the mid-1900s and continues to impact civil rights movements in the present. While King and other leaders generated momentous strides for equality, the push for civil rights remains a preeminent challenge today.
This is of course subjective, but two of the most important civil liberties are the right to free speech and the right to practice any religion. Many would argue that access to free healthcare and free education at all levels (including college) should be civil liberties as well.
Government Debt.
Corruption.
Extreme weather.
Lack of control in local food.
Lack of access to education.
Mental illness - lack of proper psychiatric care.
World hunger.
Epidemic diseases.