Alexander Fleming vs Louis Armstrong
Two music prodigies, compared on what is actually documented: field, era, country and record. No invented numbers.
The record, side by side
| Alexander Fleming | Louis Armstrong | |
| Field | Music | Music |
| Sub-field | Musician | Jazz |
| Born | 1881 | 1901 |
| Died | 1955 | 1971 |
| Country of birth | SCT | United States |
| Star sign | Leo | Leo |
Who they are
Alexander Fleming
In September 1928, a Scottish bacteriologist returned from his summer holiday to a cluttered laboratory at St Mary's Hospital in London, and noticed something unusual on a petri dish he had left behind. A mould had contaminated one of his cultures of Staphylococcus bacteria — and around the mould, the bacteria were dead. Alexander Fleming did not immediately grasp that he had just made the most important medical discovery of the twentieth century. But he was curious enough to look more carefully, and careful enough not to throw the dish away. That decision would eventually…
Full biography of Alexander Fleming →
Louis Armstrong
Louis Daniel Armstrong was born on August 4, 1901, in the Third Ward of New Orleans, in an impoverished neighborhood his neighbors called "the Battlefield." His father abandoned the family when Louis was an infant, and his mother, Mary Ann Armstrong, often worked as a domestic servant, leaving young Louis and his sister largely to fend for themselves. He grew up in the streets, singing for coins in a vocal quartet, delivering coal, and selling newspapers. He received his first formal musical instruction not in a school or conservatory but in the New Orleans Colored…
Full biography of Louis Armstrong →
What they share
- Both are held here under Music.
- Their lifetimes overlap.
- Both Leo.
Where they part
- Born in different countries: SCT and United States.
- 20 years separate their births (1881 and 1901).
Questions people ask
- Who came first, Alexander Fleming or Louis Armstrong?
- Alexander Fleming. Alexander Fleming was born in 1881, Louis Armstrong in 1901.
- What field is each of them in?
- Alexander Fleming is filed under Music (Musician). Louis Armstrong is filed under Music (Jazz).
- Were they contemporaries?
- Yes - their lifetimes overlap.

