Algol

He was the defiant homesteader, the crusty senior member of a research team who understood Algol and Fortran but couldn't read the secrets of his own heart.

Algol, on the other hand, introduced the notion of block structure, in which the programmer could group lists of statements, effectively creating one instruction out of a list of instructions.

Later, ALGOL was used as the basis of JOVIAL, MAD, NELIAC, and ALGO. In 1960, a division occurred based on unresolved disagreements and ALGOL 60 was born.