Christiaan Barnard (1967)

The first successful human heart transplant was performed by Dr. Christiaan Barnard on December 3, 1967 in Cape Town, South Africa.

1. Dr. Christiaan Barnard (1967)
2. Dr. Norman Shumway (1968)
3. Dr. Adrian Kantrowitz (1968)
4. Dr. Leonard Bailey (1984)

Sir Edmund Hillary and Tenzing Norgay (1953)

1. Sir Edmund Hillary (New Zealand) and Tenzing Norgay (Nepal) - 1953
2. James Whittaker (US) - 1963
3. Reinhold Messner (Italy) - 1978
4. Erhard Loretan (Switzerland) - 1986

Robert Peary (1909)

The first man to reach the North Pole was Robert Edwin Peary, an American explorer, in 1909.

1. Robert Peary (1909)
2. Matthew Henson (1909)
3. Roald Amundsen (1926)
4. Lincoln Ellsworth (1926)

Roald Amundsen (1911)

The first man to reach the South Pole was Roald Amundsen, a Norwegian explorer. He arrived at the South Pole on December 14, 1911.

1. Roald Amundsen (1911)
2. Robert Falcon Scott (1912)
3. Sir Vivian Fuchs (1958)
4. Sir Edmund Hillary (1958)

Ferdinand Magellan (1521)

The first man to sail around the world was Ferdinand Magellan, a Portuguese explorer who led a Spanish expedition. He set out in 1519 and completed the journey in 1522, although he did not survive the journey and was killed in the Philippines. The expedition consisted of five ships and about 270 men, and only one ship, the Victoria, returned to Spain with 18 survivors. The voyage was significant because it was the first to circumnavigate the globe and proved that the world was round.

1. Ferdinand Magellan (1519-1522)
2. Francis Drake (1577-1580)
3. William Dampier (1679-1691)
4. James Cook (1768-1771)

Fahien (405 AD)

The first Chinese pilgrim to visit India was Fa-Hien, who travelled to India in the 5th century CE.

1. Fa-hsien (337-422)
2. Hsüan-tsang (602-664)
3. I-ching (635-713)
4. Yijing (635-713)

Alexander the Great (326 BC)

The first European to invade India was Alexander the Great in 326 BC. However, other Europeans would later invade India, including the Portuguese in the 16th century and the British in the 18th and 19th centuries.

Fran Phipps (1971)

Fran Phipps was the first woman to reach the South Pole. She was part of the first all-women team to make the journey in 1971.

Margaret Thatcher (1979)

The first woman to serve as Prime Minister of the United Kingdom was Margaret Thatcher, who was in office from 1979 to 1990.

There have been only two female prime ministers in Britain: Margaret Thatcher and Theresa May. Margaret Thatcher served as prime minister from 1979 to 1990, and Theresa May served from 2016 to 2019.

American college professor and scientist Robert Goddard built and flew the world's first liquid propellant rocket on March 16, 1926. Its flight, though unimpressive (it climbed only 12.5 meters), was the forerunner of the Saturn V Moon rocket 43 years later.

Option A (Robert Goddard) is a valid choice, as he is considered one of the pioneers of modern rocketry and developed the first liquid-fueled rocket.