This week, join Rebecca Sheir as we meet one of the world's greatest and most unknown explorers, Matthew Henson. This self-educated African-American WHO persevered through discrimination to become one of the first people to reach the North Pole. WHEN you hear his story, you'll learn so much about the WOW he discovered in our world!

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Meet Alicia Alonso, a nearly blind Cuban prima ballerina WHO stunned audiences around the world with her incredible talents. Alicia dedicated her life to her craft; even WHEN she was recovering from eye surgery and couldn't see, she would practice her routines with her fingers. Join Rebecca Sheir as we learn how Alicia WOWed the world as one of the best ballerinas of her time! Head to whowhenwow.com for activities and more based on this episode.

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Meet Zaha Hadid, an Iraqi-British architect WHO broke barriers in her male-dominated field with her spectacular constructions! Her buildings didn't immediately come to life, but WHEN people began to believe in her imaginative designs, she soon had the public saying "WOW" all over the world. Join Rebecca Sheir as she learns about Hadid's architectural legacy, solidified when she became the first woman to be awarded the Pritzker Architecture Prize!

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Meet Bass Reeves, a freed slave WHO became the first Black Deputy Marshal west of the Mississippi. He WOWed the world WHEN he was able to find over 3,000 outlaws during his career. Join Rebecca Sheir as she shares the untold story of Deputy U.S. Marshal, Bass Reeves! Head to whowhenwow.com for activities and more based on this episode.

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Meet Madam C.J. Walker, WHO became the first female self-made millionaire in America. She changed the world WHEN she created hair care products specifically for African American hair! Join Rebecca Sheir as we meet this amazing entrepreneur WHO added a lot of WOW to our world.

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Meet Caroline Herschel, a German astronomer WHO reached for the stars and became the first woman to discover a comet. During the 18th century, WHEN most women were expected to learn about housekeeping, she wanted to learn about our universe. With her brother, she built telescopes which led to discoveries that changed the way we saw the world. Join host Rebecca Sheir as we meet this stellar scientist who added WOW to our world.

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Meet Roberto Clemente, one of the greatest baseball players of his generation WHO was the first Latino player in history to reach the unbelievable achievement of 3,000 career hits. His heart was full of much more than just a love for baseball; WHEN an earthquake jolted the capital of Nicaragua, he dropped everything he was doing to help. Join host Rebecca Sheir as we meet the this amazing baseball player with an incredible heart, who added so much WOW to our world.

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Meet Dr. Chien-Shiung Wu, one of the world's most influential physicists WHO was also known as the "First Lady of Physics." She stunned her mentors and colleagues with her discoveries, especially WHEN she disproved a law of nature and helped with a secret government nuclear project to bring an end to World War II. Join host Rebecca Sheir as we meet this brilliant scientist who uncovered so much WOW in our world. Then, head to whowhenwow.com for activities based on this episode!

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Meet Lewis Latimer, the inventor WHO worked on some of the most important inventions of his time, like the lightbulb and the telephone! As a son of slaves, Lewis persevered through difficult challenges of discrimination and segregation WHEN he pursued his passions. Join host Rebecca Sheir as we meet this brilliant inventor who brought so much WOW to our world. Head to whowhenwow.com for free printables based on today's episode!

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Meet Annie "Londonderry" Kopchovsky, the cyclist WHO rode her bicycle all around the world! Annie let nothing get in the way of her accomplishing her goals of becoming one of the world's greatest cyclists, even WHEN everyone doubted her. Join host Rebecca Sheir as we meet this fearless cyclist who WOWed the world.

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