Just a couple more lighthouse facts.... (because Mr. Bean wanted more!)
THE LIGHTHOUSE SERVICE WAS CREATED IN 1789 by the 9th Act of the first Congress. Over the years, lighthouses were placed under the direction of the Department of Revenue (this department was disbanded in 1820), Treasury (until 1903), Commerce, and Transportation. The Lighthouse Board (of the U. S. Lighthouse Establishment) held sway from 1852 to July 1, 1910 when Commerce created the Bureau of Lighthouses. The Coast Guard took over on July 7, 1939. The Lighthouse Board divided the country into Districts in 1852: there were originally 8 and then eventually 19. Today the Coast Guard only has 10 districts.
THE FIRST AMERICAN LIGHTHOUSE TO USE ELECTRICITY was the Statue of Liberty in 1886.
The most powerfull lighthouse in the Western Hemisphere is the Sullivan Island Light in Charleston, SC. It originally had 28 million candelas (candlepower) but the light was actually too dazzling and the power was lowered to 1.2 million candelas. It could still be seen over 26 nautical miles (48 km; 30 mi)
Now, your lighthouse quiz question for the day (no peeking)
What is a Daymark?