Library of Congress

loc.gov

US की नेशनल लाइब्रेरी से डिजिटाइज़्ड पांडुलिपियां, नक्शे, अखबार और तस्वीरें। आइटम पेज और स्कैन किए गए दस्तावेज़ मुफ्त प्राइमरी सोर्स हैं।

The Library of Congress digitizes manuscripts, historic newspapers, maps, and photographs straight from its own holdings as the US national library, so a notebook built on it works from scans of the actual period documents rather than someone's summary of them. Its Chronicling America newspaper archive is a particularly strong source for historical research grounded in contemporary reporting. Not everything has a clean transcription, so older handwritten material may need extra scrutiny of the scan itself rather than relying on OCR text.