Person: George Ellery Hale
![](https://s30471.pcdn.co/wp-content/uploads/2021/12/MtPalomar_RAC_001-500x500.jpg)
1920s
1930s
1940s
Building the Hale Telescope
A 20-year-long project, funded by Rockefeller philanthropies, took technologies enabling astronomy to an unprecedented scale.