Final answer:
Preservation of sources of history is essential for historians to build an authentic narrative of the past. Historians rely on various strategies, such as studying artifacts and analyzing textual sources, to gather information. Digitization and contributions from libraries and archives play a crucial role in preserving historical sources.
Step-by-step explanation:
Preservation of sources of history is essential for historians to build an authentic narrative of the past. Written sources are valuable but can often leave out important details. Historians rely on various strategies, such as studying artifacts and analyzing textual sources, to gather information.
Additionally, the digitization of historical texts and the contribution of libraries and archives play a crucial role in preserving historical sources. It is important to approach all sources with a critical eye and corroborate information for accuracy.