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Population pyramids by place and year

Curated learning-resource discovery by discipline

An ophthalmology encyclopedia written by eye specialists

Investigate forensic timelines collaboratively

A multilingual encyclopedia with a language-aware search

Regional history connected to Philadelphia's present

Physical constants linked to units and uncertainty guidance

Quran reading and listening organized by surah and topic

AI SRE platform that investigates alerts and helps resolve incidents

Visual-art history through artists, movements and ideas

Classical texts and reference material about ancient Rome

A multilingual dictionary portal