(yav tas los United States National Museum) kev siv dawb ntawm kev sau ntawm 2.8 lab dluab thiab . Cov duab yog luam tawm nyob rau hauv pej xeem sau, tso cai muab faib thiab siv nyob rau hauv ib daim ntawv los ntawm leej twg tsis muaj kev txwv. Txhawm rau nkag mus rau qhov sau, tshwj xeeb ΠΈ .
Cov duab suav nrog cov duab ntawm cov khoom qub thiab cov khoom siv tso rau hauv lub koom haum 19 lub tsev khaws puav pheej, 9 lub chaw tshawb fawb, 21 lub tsev qiv ntawv, archives, thiab National Zoo. Nyob rau hauv lub neej yav tom ntej, nws yog npaj los txuas ntxiv nthuav cov sau thiab luam tawm cov duab tshiab raws li lawv tau digitized. . Piv txwv li, thaum xyoo 2020 lawv xav tias yuav tshaj tawm kwv yees li 200 txhiab tus duab ntxiv.
Tau qhov twg los: opennet.ru