Hey, it’s Frowback Friday!*
Here’s most of the May 1999 issue of the UK LEGO Technic magazine, which premièred the very first LEGO action figures, the Slizers! These predecessors to Bionicle were the very first sets to use ball and socket joints for poseability, which is still the basis of constraction today.
You can read tons more classic LEGO Magazines on this handy website.
* ᴵ ᵃᵖᵒᶫᵒᵍᶦˢᵉ ᶠᵒʳ ᵃᶰʸ ᵐᵃʲᵒʳ ᶜʳᶦᶰᵍᶦᶰᵍ ᵒʳ ᵍʳᶦᵗᵗᶦᶰᵍ ᵒᶠ ᵗᵉᵉᵗʰ ᶜᵃᵘˢᵉᵈ ᵇʸ ᵗʰᵃᵗ ᵃʷᶠᵘᶫ ᵃᵗᵗᵉᵐᵖᵗ ᵃᵗ ʷᵒʳᵈᵖᶫᵃʸ⋅