How are the FIDE ratings calculated and what do they reflect about

When FIDE began using ELO ratings, how did it initially calculate them since no one had any rating yet, and the formula requires existing ratings? Did it assign everyone an initial rating

Visualizing FIDE chess rating list

Chess Rating Calculation - CHESS EVENTS

FAQs – Qualification Commission

Chess Ratings - How They Work

How do ratings on online chess sites (I'm active on chess.com) compare to official (FIDE or USCF) ratings? - Quora

Chess Ratings Explained – Chess Armory

With the classical portion of the World Cup finished, here is the rating change (massacre) of the elite and the new top 30. This tournament now shows why almost no top player

Chess Ratings - Chess Terms

On the probability of Magnus Carlsen reaching 2900 - Bendre - 2023 - Applied Stochastic Models in Business and Industry - Wiley Online Library

Algorand to Record Official Chess Ratings for FIDE Online Arena's First-Ever Digital Games, by Vasilios Filip