Long Keeping longkeeping.com · Reading room
Lecture · 1922 · age 43

The Meaning of Relativity: Four lectures delivered at Princeton University, May, 1921

by Albert Einstein

Kept from www.gutenberg.org · 1 file · 1.6 MBCall number EIN LC1922.01

Provenance

Source
www.gutenberg.org
Retrieved
1 October 2026
Source terms (summary)
Project Gutenberg: free use, almost no restrictions
Rights
Likely in copyrightTranslator Edwin P. Adams died in 1956, not before 1956; clears under this rule in 2027.Basis: translator E. P. Adams died 1956 (general knowledge), under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.
Formats
HTML zip
Fingerprint
9fcfe330431778ffe0b6cb74f311299ced30717feda27f25a6fcbc708112b4b4sha256 of the file (64 characters). Any change to the file changes this code.
Cite as
Albert Einstein, The Meaning of Relativity: Four lectures delivered at Princeton University, May, 1921 (1922). Long Keeping, call number EIN LC1922.01. https://longkeeping.com/albert-einstein/the-meaning-of-relativity-four-lectures-delivered-at-princet/
Unchanged since collected At the last check, on 2 October 2026, all 903 originals, this work's file among them, matched the fingerprints recorded when they were collected. Each copy is re-checked by hand once a year; there is no automatic alert yet.

Notes on this copy

  • #1The file carries images, and no check is recorded yet that none of them is a picture of the person (the collection keeps no likenesses).
  • #4A robots or site-policy slip: fetched from Project Gutenberg's main site, whose policy asks for human visitors only, or by a Wikisource request its robots rules disallow.

Original

Held in the archive: likely in copyright.

See it at its source (another site)

Files

First pass, not a clearance.

FileFormatSizeSourcesha256Label
gutenberg-pg36276-h.zipmain HTML zip 1.6 MB www.gutenberg.org 9fcfe330431778ffe0b6cb74f311299ced30717feda27f25a6fcbc708112b4b4 Likely in copyrightTranslator Edwin P. Adams died in 1956, not before 1956; clears under this rule in 2027.Basis: translator E. P. Adams died 1956 (general knowledge), under a life-plus-70-years rule, as of 2026; other rules, such as the United States publication-date rules, are not assessed.Held in the archive: likely in copyright. Its source (another site)