In 1933, construction began on the Golden Gate Bridge. The project was plagued (1)---- difficulties, however, and it would take four years to complete. The original chief engineer, Charles Ellis, had a solid reputation in structural engineering. Partway through the project, though, his health (2)----, and he was removed from the project despite his critical contributions. (3)----, the bridge's final design still bore the mark of his meticulous calculations. Removed from the site but determined (4)---- fair credit for his work, Ellis kept detailed personal records of his calculations for decades. (5)---- these internal disputes, today the Golden Gate Bridge ranks as one of the most celebrated engineering achievements of the 20th century.