Why was the attack on the LOUISIANA significant?

Which factors of ancient Greek culture and civilization do you believe to be the most important ones today? How many Merchants became the most wealthy and powerful members of towns? What is the huac? How computer will eventually replace human workers? Where in the former soviet union did an accident involving nuclear energy have long-term negative environmental and health consequences? What is an outlaw? Assuming that the earth was somehow split in half can you fall off the edge of the one half of the earth? What was the job description of a boatman in mesopotamia? What is the name given to those individual who agreed to work for 4-7 years on tobacco plantations to pay for passage to the new world? What group of American citizens were granted suffrage that allowed them to vote for the first time in a presidential election in 1920? What were baseball player Elden Auker's batting stats for 1933? Who was US Supreme Court Chief Justice during Rosa Parks' trial? What weapons were used in the Battle of Horseshoe Bend? Was gunpowder accidentally invented? Who was the last black American to appear on a US postage stamp? In the American Revolution who did the Patriots support? How did the colonial militias differ from the modern US Army? Moguls in India felt no threat by Europeans because they thought Europeans were? What was the overall goal of the Napoleonic code? How did the Ancient Egyptians explain natural events?

Why was the attack on the LOUISIANA significant?