Over the last 3 centuries, researchers have tried to understand why stammering occurs and what can be done to 'cure' it. Up until the 19th century, the causes were attributed to everything from the devil upwards.
Over the last 3 centuries, researchers have tried to understand why stammering occurs and what can be done to 'cure' it. Up until the 19th century, the causes were attributed to everything from the devil upwards.
