in what year did the first computer run a program from memory?

The first computer to run a program from memory was the Manchester Small Scale Experimental Machine, nicknamed "Baby." It ran its first program on June 21, 1948. This marked the first successful implementation of the stored-program concept, where the program's instructions were electronically stored in the computer's memory rather than being hardwired or on external media. The Baby's memory used the Williams-Kilburn tube, an early form of random access memory, and the program it ran consisted of 17 instructions to find the highest proper divisor of 2^18 (262,144).