Today in fact, 20 February.

Before the 1825, no one had ever heard of social justice. Before today I wonder how many of you have ever heard of Luigi Taparelli D’Azeglio? Well he was an Italian Jesuit priest who lived through the first half of the 19th century and he was particularly concerned with the problems arising from the industrial revolution. He invented term “Social Justice” and pretty much invented the idea of it too. The idea is that Justice needs to be distributive as well as retributive and restorative. In this he was a proponent of reviving the philosophical school of Thomism (Saint Thomas Aquinas), and his social teachings influenced Pope Leo XIII’s 1891 encyclical, Rerum Novarum (On the Condition of the Working Classes) thereby kicking-off the tradition of Catholic Social Teaching. By 1825, he had become convinced that the philosophy of Thomas Aquinas needed to be revived, thinking that the radical dualism of René Descartes leads to dramatic errors in morality and politics. He reasoned that whereas different opinions on the natural sciences have no effect on nature, unclear ideas about humanity and society can lead to social chaos and injustice. It was in his writings and as the founding Editor of an influential Catholic journal that he coined the term: “Social Justice”. Social justice promotes the idea that society belongs to all of us and that we each have an inherent dignity as human persons. Taparelli argued that “a society for all” must be based on social justice and respect for all human rights and fundamental freedoms. Since 2009 the United Nations marks this day as the World Day of Social Justice. A day recognizing the need to promote efforts to tackle issues such as poverty, exclusion and unemployment.
– Douglas Racionzer (see more such original facts on http://serendipiday.blogspot.com/)