Name The Year: Power plant at Niagara Falls begins operation.?

Questions

How was the 1839-42 Anglo-Chinese war better known?

In 1911 Roald Amundsen became the first person to reach where?

In China why were kites flown on the ninth day of every month?

In Dr Who, what was Tardis an abbreviation of?

In March 1979, where did a major nuclear accident occur?