Lethal injection gained popularity in the late 20th century as a form of execution intended to supplant other methods, notably electrocution, hanging, firing squad, gas chamber, and beheading, that were considered to be less humane. It is now the most common form of execution in the United States.
Confidence votes 48. Mount Everest is the highest mountain in the world when measured from sea level at 29,029 ft. However Mount Mckinley is taller than Everest when measured from base to summit at 18,400 ft, versus everest's 17,100 ft.
President Obama will announce Monday that his administration is officially redesignating Alaska's Mt. McKinley as Denali, the original name for the 20,237-foot-high mountain given by the area's Alaskan native population.