The licenses of the content and software components used in the mobile application and the website are as follows:

MOBILE APPLICATION

Wikipedia Text Content

Wikipedia's text content used under the terms of the Creative Commons Attribution Share-Alike license (CC-BY-SA)
https://en.wikipedia.org/wiki/Wikipedia:Reusing_Wikipedia_content
https://foundation.wikimedia.org/wiki/Terms_of_Use/en

Vis.js Timeline

Vis.js Timeline used under Apache 2.0 and MIT Licenses.
It is created by Almende B.V.
https://visjs.org/ https://almende.github.io/vis/

Flutter

SDK used under a Creative Commons Attribution 4.0 International License
https://flutter.dev/

Flutter Widgets

Widgets used under MIT License are:
- Flutter Photo View (https://pub.dev/packages/photo_view) (License)
- flutter_staggered_grid_view (https://pub.dev/packages/flutter_staggered_grid_view) (License)
- pull_to_refresh (https://pub.dev/packages/pull_to_refresh) (License)
- auto_size_text (https://pub.dev/packages/auto_size_text) (License)
- Flutter Advanced Network Image Provider (https://pub.dev/packages/flutter_advanced_networkimage) (License)
- flutter_html (https://pub.dev/packages/flutter_html) (License)
- maps_launcher (https://pub.dev/packages/maps_launcher) (License)
- cupertino_icons (https://pub.dev/packages/cupertino_icons) (License)

Widgets used under BSD Licence are:
- Webview_flutter (https://pub.dev/packages/webview_flutter) (License)
- Shared preferences plugin (https://pub.dev/packages/shared_preferences) (License)
- Shimmer (https://pub.dev/packages/shimmer) (License)
- Share plugin (https://pub.dev/packages/share) (License)
- url_launcher (https://pub.dev/packages/url_launcher) (License)
- sembast (https://pub.dev/packages/sembast) (License)
- path_provider (https://pub.dev/packages/path_provider) (License)
- device_info (https://pub.dev/packages/device_info) (License)
- Intl (https://pub.dev/packages/intl) (License)
- Firebase_crashlytics plugin (https://pub.dev/packages/firebase_crashlytics) (License)
- In App Purchase (https://pub.dev/packages/in_app_purchase) (License)
- PackageInfo (https://pub.dev/packages/package_info) (License)
- Google Analytics for Firebase (https://pub.dev/packages/firebase_analytics) (License)
- Firebase Cloud Messaging for Flutter (https://pub.dev/packages/firebase_messaging) (License)
- Uni Links (https://pub.dev/packages/uni_links) (License)
- notification_permissions (https://pub.dev/packages/notification_permissions) (License)

Widgets used under Apache 2.0 Licence are:
- Gallery Saver for Flutter (https://pub.dev/packages/gallery_saver) (License)
- devicelocale (https://pub.dev/packages/devicelocale) (License)

Material Design Icons

Used under Apache License Version 2.0. license.
https://material.io/

Angular-puzzle

Used under MIT license.
https://github.com/pdanis/angular-puzzle

Daniel’s rotate puzzle game

Used under MIT license.
https://github.com/bence-toth/daniel-rotation-puzzle-game

WEB SITE

Wikipedia Text Content

Wikipedia's text content used under the terms of the Creative Commons Attribution Share-Alike license (CC-BY-SA)
https://en.wikipedia.org/wiki/Wikipedia:Reusing_Wikipedia_content
https://foundation.wikimedia.org/wiki/Terms_of_Use/en

Roboto Font

Used under Apache License Version 2.0. license.
Designed by Christian Robertson
https://fonts.google.com/specimen/Roboto

Material Design Icons

Used under Apache License Version 2.0. license.
https://material.io/

PhotoSwipe

JavaScript gallery used under MIT license created by @dimsemenov
https://photoswipe.com/