Science And Education x402 offerings

Free history books: public-domain histories, memoirs and primary sources (Gutenberg, Internet Archive Americana) with download links, most popular first. $0.01 per page of 20.

Free philosophy books: public-domain works of philosophy from Plato to the early 20th century (Gutenberg, Internet Archive) with download links, most popular first. $0.01 per page of 20.

Free poetry: public-domain poetry collections and individual poets from Project Gutenberg and LibriVox (read aloud), most popular first, with download links. $0.01 per page of 20.

Free science books: public-domain works of natural science, physics, chemistry, biology and mathematics (Gutenberg, Internet Archive, Biodiversity Heritage Library) with download links. $0.01 per page of 20.

Free scanned texts from the 1800s: Internet Archive documents, pamphlets, periodicals and books dated 1800-1809 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1810s: Internet Archive documents, pamphlets, periodicals and books dated 1810-1819 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1820s: Internet Archive documents, pamphlets, periodicals and books dated 1820-1829 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1830s: Internet Archive documents, pamphlets, periodicals and books dated 1830-1839 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1840s: Internet Archive documents, pamphlets, periodicals and books dated 1840-1849 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1850s: Internet Archive documents, pamphlets, periodicals and books dated 1850-1859 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1870s: Internet Archive documents, pamphlets, periodicals and books dated 1870-1879 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1880s: Internet Archive documents, pamphlets, periodicals and books dated 1880-1889 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1910s: Internet Archive documents, pamphlets, periodicals and books dated 1910-1919 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1920s: Internet Archive documents, pamphlets, periodicals and books dated 1920-1929 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1940s: Internet Archive documents, pamphlets, periodicals and books dated 1940-1949 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1950s: Internet Archive documents, pamphlets, periodicals and books dated 1950-1959 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1960s: Internet Archive documents, pamphlets, periodicals and books dated 1960-1969 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

Free scanned texts from the 1970s: Internet Archive documents, pamphlets, periodicals and books dated 1970-1979 (Americana and library collections), most downloaded first, with rights status and links. $0.01 per page of 20.

One catalogued work by id with every download link and its rights status, last-verified date and source page. Use after a search, or with a known Gutenberg number (gutenberg:1342), LibriVox id (librivox:47) or Internet Archive identifier. $0.01 per lookup.

Everything free by 428? BCE-348? BCE Plato: the 77 catalogued public-domain books, audiobooks and texts credited to 428? BCE-348? BCE Plato across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.

Everything free by 621? BCE-565? BCE Aesop: the 33 catalogued public-domain books, audiobooks and texts credited to 621? BCE-565? BCE Aesop across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.

Everything free by 751? BCE-651? BCE Homer: the 37 catalogued public-domain books, audiobooks and texts credited to 751? BCE-651? BCE Homer across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.

Everything free by A. A. Milne: the 35 catalogued public-domain books, audiobooks and texts credited to A. A. Milne across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.

Everything free by A. L. O. E.: the 46 catalogued public-domain books, audiobooks and texts credited to A. L. O. E. across Project Gutenberg, LibriVox and Internet Archive, most popular first, each with direct download links. Add words to narrow by title. Re-verified daily. $0.01 per page of 20.