The term ‘social work’ was first coined by the American economist Simon Patten in 1900. He envisaged a new profession that would address the social problems of the modern world. These problems are neither timeless nor innate to human nature, but come into being at particular points in history as a result of people’s actions and the way they organise power in society. Looking at these issues historically enables us to see the way social problems (such as extreme inequality and poverty, mass urbanisation, industrial pollution, racism, sexism and different forms of violence) have been constructed and varied over time. More importantly, this lens may provide us with clues as to how people might un-make these problems and do something better. This historical perspective is vital for practice today because it locates critical social work as part of much wider and ongoing struggles for social justice and human rights.