Norbert Pearlroth (May 7, 1893 – April 14, 1983) was a professional researcher and polyglot, and the primary researcher for the Ripley's Believe It or Not! cartoon panel from 1923 until 1975.
Pearlroth was born May 7, 1893, in Tarnów, in what is now southern Poland, at the time part of the Habsburg Empire. He attended university in Kraków and was planning to become a lawyer, but the events of World War I took him away from his studies. He came to the United States in 1920. He was working as a teller in a New York City bank in 1923 when he met Robert Ripley, who was in the process of expanding his syndicated Believe It or Not! newspaper panel from sports trivia to general interest and was looking for someone who could read foreign journals. Pearlroth was fluent in 14 languages, and an avid reader of foreign publications, and he had an unusual memory for miscellany.
As Ripley's sole researcher, he worked ten hours a day, six (sometimes seven) days a week at the New York Public Library's Main Reading Room. The library estimated that Pearlroth examined some 7,000 books every year. "Everyone has always believed that all of this information was found wandering the world," said Pearlroth's son, Arthur. "But it was really found on 42nd Street and Fifth Avenue at the Main Library."
Each morning, Pearlroth left his home in Brooklyn, where he lived with his wife, Susan, and two children, and took the subway into Manhattan. He worked at his office until noon, answering some of the 3000 letters that arrived each week from readers all over the world. "The readers always had some argument with me," he said, but claimed he was wrong only once—about a man named Seaborn who he said was born at sea. (He was actually born aboard a ship at anchor in a harbor.) He never ate lunch; at noon he headed to the library, where he worked through the afternoon and evening, taking half an hour for dinner, returning home when the library closed at 10pm. He sometimes worked on Sundays if he fell behind in locating items. His deadline was on Friday, and he always worked several weeks in advance. This routine continued for 26 years, interrupted only when he accompanied Ripley on several of his exotic and highly publicized world journeys.