Copyright Attribution

Images and other copyrighted material in posts are credited where they appear (when appropriate or required). Paid products and services are not attributed unless required by their license terms.

This page provides appropriate attribution for the free technologies upon which this website is built, and the free components, tools, fonts, icons, and images that are incorporated into the development or operation of the Off on a Tangent custom WordPress theme and plugin.

I am indebted to all of the authors and contributors whose creations play a part in this website.

If you believe that appropriate attribution has not been made here or elsewhere on the site, please contact me. I intend to give credit wherever it is due and I apologize if I have missed anything.

Tangent

• Tangent Plugin. Complex WordPress integration and utilities. Copyright © 1995-2023, Scott Bradford Creative Enterprises. All Rights Reserved (undistributed GPLv2).
• Tangent Theme. Primary design and layout for Scott Bradford: Off on a Tangent. Copyright © 1995-2023, Scott Bradford Creative Enterprises. All Rights Reserved (undistributed GPLv2).
  • Incorporates Underscores (_s). WordPress starter theme. (C) 2012-2023 Automattic, Inc. Licensed under the GNU General Public License, Version 2.
  • Incorporates js-dos by Alexander Guryanov (aka caiiiycuk) and contributors. Licensed under the GNU General Public License, Version 2.

Components and Tools

• Apache HTTP Server. Primary web server system. Copyright 1995-2023 by the Apache Software Foundation. Licensed under the Apache License, Version 2.0.
  • Incorporates NCSA HTTPd by the National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign. Copyright (C) 1995, Board of Trustees of the University of Illinois. Public Domain.
  • Incorporates MD5 Message-Digest Algorithm by RSA Data Security Inc., Spyglass Inc., Carnegie Mellon University, and Bell Communications Research, Inc.
  • Incorporates PCRE library pcreposix.c by Philip Hazel. Copyright 1997-2004 by the University of Cambridge, England.
• Bootstrap. Front-end design framework. Copyright (c) 2011-2023 Twitter, Inc. and The Bootstrap Authors. Licensed under the MIT License.
• Bootstrap Icons. Primary icon framework. Copyright (c) 2019-2023 The Bootstrap Authors. Licensed under the MIT License.
• Bootstrap Navbar Dropdowns. Enhanced navigation dropdowns. Copyright Vasilii A., 2014-2023. Licensed under the MIT License.
• CSS Optimizer (CSSO). CSS optimization. Copyright (C) 2011-2015 by Sergey Kryzhanovsky, Copyright (C) 2015-2019 by Roman Dvornov. Licensed under the MIT License.
• jQuery. Client-side scripting framework. Copyright OpenJS Foundation and other contributors. Licensed under the MIT License.
• jsVectorMap. U.S. and world maps. Copyright (c) 2020-2023 Mustafa Omar. Licensed under the Apache License, Version 2.0.
• Lato by Łukasz Dziedzic, Adam Twardoch, and Botio Nikoltchev. Primary content font. Copyright (c) 2010-2018 by tyPoland Lukasz Dziedzic. Licensed under the SIL Open Font License 1.1.
• MaxMind GeoLite2. Used for jurisdiction notices. Copyright 2023 MaxMind, Inc. Licensed under the GeoLite2 End User License Agreement.
• Mousetrap. Keyboard shortcut system. Copyright 2012-2017 Craig Campbell. Licensed under the Apache License, Version 2.0.
• MySQL Server. Relational database system. Copyright (c) 2000, 2023, Oracle and/or its affiliates. Licensed under the GNU General Public License, Version 2.
• Nunito Sans by Vernon Adams, Jacques Le Bailly, Manvel Shmavonyan, and Alexei Vanyashi. Header and call-out font. Copyright 2016 The Nunito Project Authors. Licensed under the SIL Open Font License 1.1.
• OptiPNG. PNG optimization. Copyright (C) 2001-2017 Cosmin Truta and the Contributing Authors. Licensed under the zlib License.
• PHP. Server-side scripting language. Copyright (c) 1999-2023 The PHP Group. Licensed under the PHP License, version 3.01.
• PHP MoonPhase. Used to calculate lunar-based holidays. Copyright 2012-2023 Samir Shah, Tobias Köngeter, and contributors. Licensed under the MIT License.
  • Incorporates Moontool for Windows by John Walker. Public Domain.
• Popper. Handle positioning of tooltips and popovers. Copyright (c) 2019-2023 Federico Zivolo. Licensed under the MIT License.
• UglifyJS. JavaScript optimization. Copyright 2012-2019 (c) Mihai Bazon. Licensed under the BSD License (2-clause).
• WordPress. Platform and content management system. Copyright 2011-2023 by the contributors. Licensed under the GNU General Public License, Version 2.
  • Incorporates b2. (c) 2001, 2002 Michel Valdrighi. Licensed under the GNU General Public License, Version 2.
  • Active plugins licensed under the GNU General Public License, Version 2:
    • Akismet Anti-Spam by Automattic
    • Broken Link Checker by WPMU DEV
    • Disable Comments by WPDeveloper
    • Geolocation IP Detection by Yellow Tree (Benjamin Pick)
    • Site Kit by Google by Google
    • Jetpack by Automattic
    • Search Exclude by QuadLayers
    • VigilanTor by Drew Phillips
    • Yoast SEO by Team Yoast

Images

• ‘Vote’ Political Button by Microsoft Office Images. Holiday image for Election Day. Licensed under the Microsoft Office 2008 for Mac Software License Agreement.
• 13th Amendment to the United States Constitution by the National Archives of the United States. Holiday image for Emancipation Day. Public Domain.
• 1968 Republican National Convention by the Florida State Archives. Holiday image for Election Day. Public Domain.
• A Champagne Cheers! by Microsoft Office Images. Holiday image for New Years Day. Licensed under the Microsoft Office 2008 for Mac Software License Agreement.
• Adoration of the Lamb by Jan van Eyck. Holiday image for the Solemnity of Mary. Public Domain.
• Adoration of the Magi by Bartolomé Esteban Murillo. Holiday image for Epiphany Day. Public Domain.
• American Flag (1291945) by Angelique Johnson (oohhsnapp). "Election" blurble header background. Licensed under the Pixabay License.
• American Flag (16674) by PublicDomainPictures. "Politics" blurble header background. Licensed under the Pixabay License.
• Ascension by John Singleton Copley. Holiday image for the Solemnity of the Ascension of the Lord. Public Domain.
• Assumption of Mary by Titian. Holiday image for the Solemnity of the Assumption of Mary. Public Domain.
• Autumn Avenue (3186876) by jplenio. Holiday image for the day after Thanksgiving. Licensed under the Pixabay License.
• Bright Yellow Fireworks in a Smoky Red Colored Sky by Microsoft Office Images. Holiday image for Chinese New Years. Licensed under the Microsoft Office 2008 for Mac Software License Agreement.
• Christ at the Cross by Bronzino. Holiday image for Good Friday. Public Domain.
• Church Candles (2628473) by S. Hermann & F. Richter (pixel2013). Holiday image for Christmas Eve. Licensed under the Pixabay License.
• Civil Rights March (Martin Luther King Jr.) by the National Archives of the United States. Holiday image for the Birthday of Martin Luther King Jr.. Public Domain.
• Close-Up of the United States Flag by Microsoft Office Images. Holiday image for Flag Day. Licensed under the Microsoft Office 2008 for Mac Software License Agreement.
• Confirmation by Nicolas Poussin. Holiday image for my Confirmation day. Public Domain.
• Constitution of May 3, 1791 by Jan Matejko. Holiday image for Polish Constitution Day. Public Domain.
• Creative Commons Icons. Footer copyright badge. Licensed under the Creative Commons Attribution 4.0 International License.
• Cross of Ashes by Jennifer Balaska. Holiday image for Ash Wednesday. Public Domain.
• Father McGivney by John Tierney. Holiday image for the Memorial of Blessed Michael J. McGivney. Public Domain.
• Fireworks New Years Eve (1953253) by Nick (nck_gsl). Holiday image for New Years Eve. Licensed under the Pixabay License.
• Flag of the President of the United States. Holiday image for Presidents Day. Public Domain.
• Foto del Venerabile Carlo Acutis. Holiday image for the Memorial of Blessed Carlo Acutis. Used By Permission.
• Fronleichnamsprozession by Carl Emil Doepler. Holiday image for Corpus Christi Sunday. Public Domain.
• Gadsden Flag (Reproduction) by Christopher Gadsden, Lexicon, and Vikrum. Footer "Don't Tread on Me" badge. Licensed under the Creative Commons Attribution-ShareAlike 2.0 Generic License.
• Ghent Altarpiece by Hubert van Eyck. Holiday image for Christ the King Sunday. Public Domain.
• Half Mast Flag USA Consolate (7148529) by Juliette Kober (Scholie). Image marking days with the U.S. flag at half mast. Licensed under the Pixabay License.
• Holy Trinity by Peter Paul Rubens. Holiday image for the Solemnity of the Most Holy Trinity. Public Domain.
• Inmaculada Concepción by Juan Antonio de Frías y Escalante. Holiday image for the Solemnity of the Immaculate Conception of Mary. Public Domain.
• Iwo Jima Veterans by Lance Corporal Lisa M. Tourtelot. Holiday image for Veterans Day. Public Domain.
• Jesus at the Tomb by Vladimir Borovikovsky. Holiday image for Holy Saturday. Public Domain.
• John the Baptist in the Desert by Cristofano Allori. Holiday image for the Solemnity of the Nativity of Saint John the Baptist. Public Domain.
• Juneteenth Emancipation Day Celebration by Charles Stephenson (Grace Murray). Holiday image for Juneteenth. Public Domain.
• Labor Day Parade, Union Square, New York, 1882. Holiday image for Labor Day. Public Domain.
• Landing of Columbus by John Vanderlyn. Holiday image for Columbus Day. Public Domain.
• Law Enforcement (2893847) by Igor Ovsyannykov (igorovsyannykov). Holiday image for Peace Officers Memorial Day. Licensed under the Pixabay License.
• Leif Erikson Discovers America by Hans Dahl. Holiday image for Leif Erikson Day. Public Domain.
• Lit Colorful Striped Birthday Candles by Microsoft Office Images. Holiday image for my birthday. Licensed under the Microsoft Office 2008 for Mac Software License Agreement.
• Maximilian Kolbe. Holiday image for the Memorial of Saint Maximilian Kolbe. Public Domain.
• Mooncake Mini Pastry (2439988) by Cedric Yong (ScribblingGeek). Holiday image for the Chinese Mid-Autumn Festival. Licensed under the Pixabay License.
• Navy Battleships at Pearl Harbor by the U.S. National Archives and Records Administration. Holiday image for Pearl Harbor Remembrance Day. Public Domain.
• Official Portrait of Thomas Jefferson by Rembrandt Peale. Holiday image for Thomas Jefferson's Birthday. Public Domain.
• Palm Sunday in Moscow by Vyacheslav Schwarz. Holiday image for Palm Sunday. Public Domain.
• Pentecôte by Jean II Restout. Holiday image for the Solemnity of Pentecost. Public Domain.
• Portrait of George Washington by Gilbert Stuart. Holiday image for Washington’s Birthday. Public Domain.
• Powhatan’s Mantle. Holiday image for Indigenous Peoples' Day. Public Domain.
• Prayer Hands Church Light Religion (2544994) by Himsan. Holiday image for the days of prayer. Licensed under the Pixabay License.
• Pro-Life Flag by the Pro-Life Flag Project. Holiday image for the Day of Prayer for the Legal Protection of Unborn Children. Used By Permission.
• Resurrection of Christ by Noël Coypel. Holiday image for Easter. Public Domain.
• Sacred Heart of Jesus. Holiday image for the Solemnity of the Most Sacred Heart of Jesus. Public Domain.
• Saint Elizabeth Ann Seton. Holiday image for the Memorial of Saint Elizabeth Ann Seton. Used By Permission.
• Saint Isidor of Sevilla by Bartolomé Esteban Murillo. Holiday image for the Memorial of Saint Isidore. Public Domain.
• Saint Joseph with the Infant Jesus by Guido Reni. Holiday image for the Solemnity of Saint Joseph. Public Domain.
• Saint Paul and Saint Peter by El Greco. Holiday image for the Solemnity of Saints Peter and Paul. Public Domain.
• Saint Peter’s Basilica (4777353) by Volker Glätsch (Glavo). "Faith" blurble header background. Licensed under the Pixabay License.
• Saint Simon by Peter Paul Rubens. Holiday image for the Feast of Saints Simon and Jude. Public Domain.
• Saint Therese as a Novice. Holiday image for the Memorial of Saint Therese of the Child Jesus. Public Domain.
• Saint Veronica with the Veil by Mattia Preti. Holiday image for the Memorial of Saint Veronica. Public Domain.
• Sistine Chapel (3578074) by Oliver Lechner (Trimlack). "Papal Election" blurble header background. Licensed under the Pixabay License.
• Surrender of Lord Cornwallis by John Trumbull. Holiday image for Yorktown Day. Public Domain.
• The Adoration of the Shepherds by Gerard van Honthorst. Holiday image for Christmas. Public Domain.
• The Annunciation by Bartolomé Esteban Murillo. Holiday image for the Solemnity of the Annunciation of the Lord. Public Domain.
• The Annunciation (Advent) by Paolo de Matteis. Holiday image for the First Sunday of Advent. Public Domain.
• The Apostle Judas Thaddeus by Anthony van Dyck. Holiday image for Feast of Saints Simon and Jude. Public Domain.
• The Baptism of the Neophytes by Masaccio. Holiday image for my Baptism day. Public Domain.
• The Bill of Rights by the U.S. National Archives and Records Administration. Holiday image for Bill of Rights Day. Public Domain.
• The First Thanksgiving by Jean Leon Gerome Ferris. Holiday image for Thanksgiving. Public Domain.
• The Forerunners of Christ with Saints and Martyrs by Fra Angelico. Holiday image for the Solemnity of All Saints. Public Domain.
• The Last Supper by Leonardo da Vinci. Holiday image for Holy Thursday. Public Domain.
• The Mayflower at Sea by A.S. Burbank. Holiday image for Mayflower Day. Public Domain.
• Tomb of the Unknown Soldiers by Sergeant Erica Vinyard. Holiday image for Memorial Day. Public Domain.
• U.S. Constitution by the U.S National Archives and Records Administration. Holiday image for Constitution Day. Public Domain.
• U.S. Declaration of Independence (Reproduction) by William Stone. "Liberty" blurble header background. Public Domain.
• Virgen de Guadalupe. Holiday image for the Feast of Our Lady of Guadalupe. Public Domain.
• World Trade Center Cross by Andreas Meck. Holiday image for Patriot Day (9/11). Public Domain.