H ?

1990s languages ↑
New internationlism ↑
Internet ↑

Explore languages for and for year 1999

D    ⊕ 1999   ⊕ OO C family     Object oriented C dialect 
ETL    ⊕ 1999        
Euler    ⊕ 1999       Maths language 
Formulate    ⊕ 1999        
Hancock    ⊕ 1999