Isambard Kingdom Brunel was an English civil and marine engineer considered "one of the greatest figures of the Industrial Revolution", "perhaps the most eminent Victorian engineer", and one whose work "altered the lives of almost every person in Britain, and millions abroad". The first engineer of the Great Western Railway (GWR), he was responsible for the design and construction of its London–Bristol main line. His maritime career saw the construction of the largest steamships in the world at the time, the SS Great Western, SS Great Britain, and SS Great Eastern. His career was marred by continual financial and engineering setbacks.