On Wikipedia, compare Ada Lovelace, Grace Hopper, and Katherine Johnson. For each, give field, lifespan, and one major contribution, then rank them by birth year.
Based on their Wikipedia entries, here is the comparison of Ada Lovelace, Grace Hopper, and Katherine Johnson:
| Name | Field | Lifespan | Major Contribution |
|---|---|---|---|
| Ada Lovelace | Mathematics & Computing | 1815–1852 | Wrote the first published computer program (an algorithm for the Analytical Engine to calculate Bernoulli numbers). |
| Grace Hopper | Computer Science & Mathematics | 1906–1992 | Developed the first compiler (A-0) and was a primary creator of the COBOL programming language. |
| Katherine Johnson | Mathematics & Orbital Mechanics | 1918–2020 | Calculated the flight trajectories for the first U.S. crewed spaceflights, including the Apollo 11 moon landing. |
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