Celebrate the Birthdays of Major Programming Languages

FORTRAN
Age: 67 years
Next milestone: 2027 (70 years)
COBOL
Age: 64 years
Next milestone: 2029 (70 years)
LISP
Age: 65 years
Next milestone: 2029 (70 years)
BASIC
Age: 59 years
Next milestone: 2029 (65 years)
Smalltalk
Age: 52 years
Next milestone: 2027 (55 years)
Java
Age: 29 years
Next milestone: 2025 (30 years)
C
Age: 52 years
Next milestone: 2027 (55 years)
C++
Age: 38 years
Next milestone: 2028 (40 years)
Python
Age: 33 years
Next milestone: 2025 (35 years)
JavaScript
Age: 29 years
Next milestone: 2025 (30 years)
Ruby
Age: 28 years
Next milestone: 2025 (30 years)
PHP
Age: 29 years
Next milestone: 2025 (30 years)
Swift
Age: 10 years
Next milestone: 2024 (10 years)
Go
Age: 14 years
Next milestone: 2026 (15 years)
Kotlin
Age: 13 years
Next milestone: 2025 (15 years)