There are a few erroneous passages in “A Brief History of Type” in regards to Johannes Gutenberg. The year should be 1439, not 1493, which is merely a typo. The paragraph also explains the printing press system in incorrect detail. Gutenberg’s major contribution was the casting machine, which enabled him to make standardized letter molds. These blocks were cast in a lead alloy, not wood, as reported in the article.

I am at fault for this error, which has been resolved with other fixes and clarifications in a new build of The Typography Manual, currently being reviewed by Apple. I greatly apologize for the incorrect facts mentioned above, and any details that might seem unclear to users. I appreciate the constructive feedback I’ve received, and I will continue to work hard to improve and expand all areas of the manual in upcoming releases.

- Justin

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