Who Knew? The first Cincy burger to come with tartar sauce was not cooked up where you might think

CINCINNNATI - The Tri-State is home to many fascinating facts, offbeat oddities, and "I did not know that," moments. With that in mind, we introduce this new weekly feature. Read on to find out how you can submit an idea for "Who Knew?"

For our first installment, an unpretentious diner in OTR claims bragging rights for the first burger with tartar sauce in town.

According to one of its founders, who is 92 and still works there, she and her husband started it all.

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