We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-08-29 · 6 entries checked · 3 flagged · 6 issues confirmed · 3 corrected · 3 still open
Lumber — The entry states that in the United States and Canada, 'timber refers specifically to unprocessed wood fiber, such as cut logs or standing trees, while milled boards are called lumber.' This is an oversimplification; in North American usage, 'timber' can also
Lumber — The entry says 'In 1419, the archipelago of Madeira was colonized by the Portuguese Empire.' While Portuguese exploration began around 1419, the formal colonization and settlement of Madeira is generally dated to 1420 or later, and the claim that settlers ship
Manufacturing engineering — The entry states that the Unimate performed spot welding in 1961, but the Unimate's first installation at a General Motors plant in 1961 was for die casting, not spot welding; spot welding applications began later in the late 1960s at a Ford plant.
Recycling — The claim that a mandatory bottle deposit system was introduced in Sweden in 1884 is incorrect; the first mandatory deposit system for PET bottles was introduced in 1984, and for aluminum cans in 1982.
Recycling — The claim that the first electronic waste recycling scheme was implemented in Switzerland beginning with collection of old refrigerators is misleading without specifying the year; the formal scheme (SWICO) began in 1991.
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