One hundred fourteen years ago today, the Hurricane of 1900—sometimes known as Isaacs Storm or just the Galveston Hurricane—was and remains the deadliest natural disaster in United States history. A fifth of the population of the barrier island at the southern end of Galveston Bay was lost, and the true cost of this deadly storm is nearly impossible to measure. Why was it so deadly, and how did it become intrinsically linked with the name Isaac Cline?