Social Democratic Parties are political organizations that advocate for a balance between individual freedoms and social justice. They typically support policies that promote economic equality, workers' rights, and social welfare programs. These parties often seek to reform capitalism rather than replace it, aiming to create a more equitable society through democratic means. Historically, Social Democratic Parties emerged in the late 19th and early 20th centuries, influenced by the ideas of Karl Marx and Friedrich Engels. They have played significant roles in various countries, particularly in Europe, where they have contributed to the establishment of welfare states and progressive labor laws.