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366 pages
Birthday Archive
Who died on each day of the year — curated from 569,000 Wikidata records, with sources.
Full rulesetTianjin mahjong scoring
The fan table and scoring rules in English and Japanese. Almost nowhere else has this.
6 calculatorsElectronics bench reference
Resistor colour codes, trace width, voltage drop, dividers — with the formulas and their sources.