Carnival Cruise Line has kicked off a travel agent trivia contest on its trade-dedicated Facebook page to commemorate the company’s 45th anniversary.

The line’s first ship, the TSS Mardi Gras, departed on its inaugural cruise from Miami on March 11, 1972. The contest runs through March 10.

The “Carnival 45th Anniversary Trivia” game features one trivia question related to the company’s history each day through March 10. The first nine agents to answer the daily question correctly will each win a $100 Visa gift card. During the game period, a total of 45 agents will be awarded a combined $4,500 in gift card winnings.

Agents can learn more about the contest by visiting https://www.facebook.com/CarnivalTrade.