The document provides an overview of web archiving at the National Library of Ireland (NLI) from 1877 to 2019, detailing its purpose and methodology for preserving digital content. It emphasizes the importance of archiving for cultural documentation, accountability, and accessibility, as well as outlining the thematic focus of NLI's collections. The document also discusses the NLI's response to events like the 2020 general election and the COVID-19 pandemic, highlighting their approach to capturing significant online resources.