The document summarizes several scientific breakthroughs that occurred between 1921 and 1930, including: 1. The discovery of insulin in 1921 and vitamin E in 1922. 2. Advances in immunization in 1923 and theories about the Earth's core in 1924. 3. Understanding of genetic inheritance in 1925. 4. The discovery of penicillin in 1928, which revolutionized medicine. 5. Developments in physics included Einstein's theory of relativity in 1921 and the discovery of other galaxies in 1929.

1. The Breakthroughs A work made by Clarisse Bailliart Fernando Aragão

2. SCIENCES

5. 1923 : Innovations in immuzination

6. 1924 : Speculations about Earth’s Core Drs. E. D. Williamson and L. H. Adams

7. 1925 : Character Genetical Heritage Owen D. Scott

9. Physics Chemistry

10. 1921 : Theory of Relativity Albert Einstein