What languages did you learn, in what order?

I once compiled the following list of programming languages and which year I started learning them:

• 1981: Sinclair BASIC (on a ZX81)
• 1983: BBC BASIC (on a BBC Micro)
• 1985: Pascal (installed via ROM)
• 1987: Logo
• 1987: 6502 Assembly (on a BBC Micro)
• 1989: ARM assembly (on an Acorn Archimedes)
• 1992: Casio fx-7700 BASIC
• 1992: C (using the excellent Norcroft compiler for Acorn computers)
• 1994: C++ (the awful Beebug Easy C++)
• 1995: UFI (on a VAX running OpenVMS)
• 1996: StrongARM assembly
• 1996: Standard ML
• 1997: Mathematica
• 1998: Quake C
• 2004: OCaml
• 2006: Java
• 2007: Common Lisp
• 2007: Scheme
• 2007: Scala
• 2007: Haskell
• 2007: F#
• 2009: Clojure
• 2010: HLVM
• 2017: Elm
• 2017: Javascript

I was recently concerned to hear from Socio-PLT: Quantitative and Social Theories for Programming Language Adoption that the number of languages a programmer knows stagnates after the age of just 20. The decade is nearing its end but I have only learned three languages. Now I'm wondering which languages I should learn next...