Religious and Nonreligious Belief Systems

Examining the nature of religion, religiosity, and religious faith through the framework of atheism.

Illustrated depictions of a dinosaur fossil and books.
  • The Ten Commandments
    First Commandment: Thou Shalt Not Have Any Gods Before Me
  • 14 february Valentine's day
    The Pagan Origins of Valentine's Day
  • Woodcut illustration (leaf [p]4r, f. cxxxiiii) of Pope Joan, hand-colored in red, green, yellow and black, from an incunable German translation by Heinrich Steinhöwel of Giovanni Boccaccio's De mulieribus claris, printed by Johannes Zainer at Ulm ca. 1474.
    Pope Joan: Was There Really a Female Pope?
  • Ten Commandments
    Tenth Commandment: Thou Shalt Not Covet
  • Pope Pius XI Tomb
    Popes of the 20th Century
  • Lipstick on collar
    Thou Shalt Not Commit Adultery
  • Illustration of agnostic vs. atheist beliefs
    The Difference Between Atheists and Agnostics
  • Atheist Dictionary
    Atheism for Beginners
  • Socrates
    The Importance of Logic and Philosophy
  • Greek God Poseidon
    What Is Theism?
  • Henry IV at the gate of Canossa, by August von Heyden
    Background on the Investiture Conflict and Controversy
  • George Washington
    George Washington Quotes on Religion
  • Congregation Sitting in Church
    7 Reasons People Believe in God
  • Antipope Clement VII
    What is an Antipope?
  • Swearing an Oath in Court
    Ninth Commandment: Thou Shalt Not Bear False Witness
  • Atheist Dictionary
    What's the Difference Between Nontheism and Atheism?
  • Baalbek, Temple of Jupiter Baal (Heliopolitan Zeus): Site of Worship of Canaanite God Baal
    Roman Heliopolis & Temple Site at Baalbek in Lebanon's Beqaa Valley
  • Italy, Lazio, Rome, View of St. Peter's Basilica
    Secularism Vs Secularization: What's the Difference?
  • Hindu deities
    Why Don't Atheists Believe in Gods?
  • Office Christmas party
    Is Christmas a Religious or Secular Holiday?
  • A visitor is silhouetted by the setting sun as he climbs the steps of Angkor Wat
    One or Many Gods: The Varieties of Theism
  • Close-Up Of Globe Against White Background
    What Is Secularism?
  • Sunbeams shining through clouds in blue sky
    Introduction to Theism and Atheism
  • Illustration of Pope Gregory XIII chairing the commission for reforming the Roman Calendar
    Popes of the 16th Century
  • Church in Brooklyn, stop sign and one way sign
    Types of Religious Authority
  • Christian Existentialism
  • Buddha figurine and candles on ledge
    Religion vs. Religious
  • Literary Existentialism
  • Pope Francis
    Alphabetical List of Catholic Popes
  • Book with chains
    What Does the Bible Say About Communism and Socialism?
  • Detail of Plato and Aristotle from The School of Athens by Raphael
    What Is Theology?
  • Women participate in Bible study
    What is Negative Theology in Christianity?
  • The 10 Commandments
    Ten Commandments: A Basis for American Law?
  • Italy, Lazio, Rome, View of St. Peter's Basilica
    Definition: Religious Authority Vs. Secular Authority
  • Soldiers marching in desert
    Jus Ad Bellum
  • Reflection of the church in puddle, Rome, Italy
    Atheism and Existentialism
  • Anti-Religious Organization Posts Billboard Ad for Non-Believers
    What Does It Mean to Be an Atheist?
  • The 10 Commandments
    Comparing the Ten Commandments
  • Natural Theology vs. Theology of Nature
  • Woman meditating on grassy field
    What is Wrong With Buddhism?
  • Detail of scultures at Sri Mariamman Hindu Temple
    Religion Is a Belief in Supernatural Beings
  • Arch Bridge (Rakotzbrucke) in Kromlau
    What are Nature Religions?
  • Basilica Di Santa Maria Maggiore
    Roman Catholic Popes of the Fifth Century
  • Statue of Saint Peter against blue sky
    How the Papacy Originated in Rome
  • Italy, Lazio, Rome, View of St. Peter's Basilica
    Development of Papal Primacy
  • Graffiti
    Nonbeliever vs. Atheist
  • Second Commandment: Thou Shalt Not Make Graven Images
  • View Of Built Structure Against Sky
    Popes Who Were Murdered or Assassinated
  • Ring Around the Rose Petals Valentine's Day Table Decoration Idea
    Valentine's Day: Religious Origins and Background
  • Hispanic woman holding four-leaf clover
    Religion vs. Superstition
  • Moral compass with Ten Commandments
    Do Muslims Follow the Ten Commandments?
    • More In: Atheism and Agnosticism
    View more