Sign May 2026

: This paper analyzes prehistoric cave markings across Europe. Instead of just looking at animal drawings, researchers focused on geometric "signs"—dots, lines, and triangles—that appear repeatedly across different caves.

: It suggests that early humans had a shared, intentional system of graphic communication long before formal writing systems like cuneiform existed. You can read the full study at PNAS . : This paper analyzes prehistoric cave markings across

: This is a foundational text for semiotics (the study of signs and symbols). Peirce breaks down how a sign works through a three-part structure: the sign itself, the object it represents, and the "interpretant" (how we understand it). You can read the full study at PNAS

: It explains why a word or image isn't just a thing—it's a tool for meaning that relies entirely on the observer's mind. You can explore a breakdown of his theories at the Stanford Encyclopedia of Philosophy . 2. The Evolution of Human Communication (Archaeology) : It explains why a word or image

: This paper compares American Sign Language (ASL) and British Sign Language (BSL) with spoken English and Spanish. It investigates iconicity —how much a "sign" (word or gesture) physically resembles what it means (e.g., the sign for "drink" looking like drinking from a cup).