1280 – Maori besiedeln Neuseeland.

Dating the late prehistoric dispersal of Polynesians to New Zealand using the commensal Pacific rat -Janet M. Wilmshurst, Atholl J. Anderson, Thomas F. G. Higham, Trevor H. Worthy, Proceedings of the National Academy of Sciences Jun 2008, 105 (22) 7676-7680; DOI.

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Signor Verde schließt.

https://www.facebook.com/signor.verde/posts/2052704974774340?hc_location=ufi.

OSM OpenPhoto.

Mapillary is a platform for street-level imagery, powered by collaboration and computer vision. We combine images from anyone with a camera to generate map data. Quelle: About | Mapillary

Eisenbahn-Brücken-Karte D.

DB Netze Brückenportal.

Duisburg-Hbf. wird neu gebaut.

Verkehrsstation Duisburg – Neubau der Gleishalle, DB Station&Service AG, August 2016, 8 S.pdf.

Stein-Konstruktion – Leipzig, 1903.

Quelle: Die Konstruktionen in Stein – Otto Warth – Google Books.

Derichsweiler Fotos in Wikipedia.

Quelle: Wikimedia Commons.

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