Ireland free information including history of Ireland, Irish literature and more ...

Life Science Reference (2009)

Dossier der New York Times (2010-15)

Reference to understand the complex legal system of the USA: civil law, criminal law, legislation (2021)

ʺThis timeline tenses chart provides a handy reference sheet to English tenses and their relationship to one another and the past, present, and future.ʺ (Quelle: Anbieter)

Each summer, Columbia University’s Summer Research Program participants develop Lesson Plans. Most are research-inspired and reference science standards (Columbia U., NY, 2009). 

This online encyclopedia organizes scholars from around the world in philosophy and related disciplines to create and maintain an up-to-date reference work (USA 2015-18).

List of Reference Websites (Library of Congress 2009-20)

ThoughtCo is a premier reference site fo science and math, humanities and religion, architecture and the arts, with a 20+ year focus on expert-created education content (USA 2020).

Visitors can explore these resources by category, including Finding Web Resources, Online Texts, Reference Works, and Image Resources, which include maps, art, and photography related to religion (USA: Yale University Library 2017).