1. Did Saint Paul attend the council of Nacea ? Which other councils did He attend?

  2. What is the origin of the idea that Matthew, Mark, and Luke didn't mention Lazarus in order to protect him?

  3. Did John Calvin observe Christmas?
  4. Did Martin Luther teach penal substitution?
  5. Is there any evidence that Paul was a descendant of Jonathan?
  6. Did Martin Luther really nail his 95 Theses to the church door?
  7. What is the difference between classical and revised dispensationalism?

  8. Missing work of St. Augustine in Latin?
  9. What is a priest of Rome?

  10. What is the oldest hymn (with music) that is still sung in churches today?
  11. In which writings does Tertullian apply the concept of satisfaction to salvation?
  12. What, if any, are some first-millenium mentions of prohibitions or approval of interracial or international marriages?

  13. Did any of the Church Fathers think the current-day Gospels were not inspired?
  14. Are there any surviving writings by Marcion or is everything we know of him what his enemies wrote of him?

  15. What is the background of the words "notitia," "fiducia," and "assensus" and how do they relate to the biblical notion of "faith"?
  16. When was the number of the beast, 666, first identified as referring to Emperor Nero?

  17. Which Protestant Christian denominations accept the Deuterocanonical books?
  18. Has any church organization refused lottery winnings as donation?

  19. What was the first recorded near death experience of a Christian claiming to have one?

  20. How prominent was "prosperity theology" in the early church?

  21. Epiphaneus: “Martyrdom of Peter and Paul”

  22. What are the Church fathers' arguments that Peter is the rock?
  23. Why did Katarina von Bora need to hide in a barrel to escape from her convent?

  24. Were celebrations for the 400th Anniversary of the Reformation held in Germany during World War I?
  25. Which Roman Catholic figure(s) has/have accused the Church of Mariolatry?

  26. Why does Judaism celebrate Sabbath on Saturday and most Christians celebrate Sabbath on Sunday?

  27. Apostle John lived in Ephesus - what sources claim that?
  28. What is the extra value of the body of Christ in the Eucharist when someone is already full of the Holy Spirit?

  29. Where is it documented that some people didn't want Gospel of John to be included as canonical?

  30. Who was Theophylact?

  31. Aren't the Nicolaitans the guys who formed the Roman Catholic Church?
  32. What are the historical arguments against a literal interpretation of Luke 22:44?
  33. Was Tetzel robbed by a man who had preemptively bought an indulgence?

  34. What was the difference between Berengar's view of the Eucharist and that of Zwingli?

  35. Were there indulgences sold for those who had no family when they died?
  36. Why are there Sybils and Prophetesses in the Sistine Chapel?

  37. How did Karl Barth justify his relationship with Charlotte von Kirschbaum?

  38. Who was the first Devil's Advocate?
  39. Why Was Jesus Represented as Being Born in a Cave?

  40. Did any other early church fathers besides Origen teach the pre-existence of souls?
  41. What passages of Scripture were used by the popes and crusaders to justify the Crusades?

  42. Did a Seventh Day Adventist start the Jehovah Witness organization?
  43. What evidence is there that Peter was a bishop in Rome?
  44. Who first addressed a religious male or female with "brother" or "sister," respectively?

  45. Did the early church accept lifelong, faithful concubinage?

  46. What was Martin Luther's perspective on the early Christian church?
  47. When/where did the practice of giving abbreviated names/initialisms to Bible translations begin?
  48. What record is there of a canon of Scripture having been set at the First Ecumenical Council?
  49. When was Sunday first called the Sabbath?
  50. Who first understood the "authorities" in Romans 13 as spiritual, not secular, authorities?
  51. When, how, and why did the Moravians stop praying 24-7?

  52. When was papal supremacy accepted by the entirety of the Catholic Church?
  53. What is the Catholic Church's official position on the Spanish Inquisition?
  54. Why was the Bible not available to common people in the Medieval period?
  55. What was the earliest Papal condemnation of slavery?
  56. Did the early church devote themselves to prayer or to "the prayers", and if the latter, which prayers?

  57. What is a brief history on the idea that the Papacy is the Anti-Christ?

  58. Romans 6:5 and "Where's Wolfius?"
  59. Which 20th-century Orthodox Christians said that the crusades were more oppressive than the Marxist anti-religious campaigns?
  60. At what point did the Eastern Church start self-identifying as the Orthodox Church?
  61. When and why did the Catholic Church first start issuing annulments?
  62. Why were Anabaptists called Anabaptists?

  63. Are Anabaptists' re-baptisms really conditional baptisms?

  64. In Western communion services, when was the origin of the practice of consistently offering only the bread to the laity?

  65. What scriptural arguments for the Trinity were used in the First Council of Nicea?

  66. Have cardinals ever been deprived of revenue or rations for taking too long to elect a pope?

  67. What were the circumstances behind the loss of the "True Cross?"

  68. When and how can a pope revoke the decrees of an ecumenical council?

  69. How did the Crusades affect the Pope's power and authority?

  70. What is the case against seeing the Medieval Catholic Church as oppressive?

  71. Are there any followers of Catharism today?

  72. What role did the Donation of Constantine have on the development of the doctrine of Papal supremacy?
  73. When were the early Christians no longer considered a sect of Judaism?

  74. How did the pattern of church today come to be?
  75. When did the word "Catholic" become a proper noun?

  76. What are some comprehensive, reliable resources to learn about the Malankara Orthodox Syrian Church?

  77. How did the Inquisition impact modern Christianity?
  78. Where did the concept of Christians attending a church building come from?

  79. What has the LDS Church (Mormons) historically taught about the Curse of Cain and dark skin?

  80. To whom does Pope Francis confess?
  81. What role do the people of Rome play in the election of a pope?

  82. What was the difference between Ratramnus's view of the Eucharist and that of Calvin?
  83. What is the history of the doctrine of inerrancy?
  84. What non-Catholic Christian groups existed in Western Europe during the Middle Ages?
  85. An open atheist's fate in the middle ages in Europe
  86. When was the Bible formally declared to be inerrant and/or infallible?

  87. Do saints and church fathers generally make the claim that most people go to a hell of everlasting torment?

  88. Why do Catholics usually baptize by pouring?
  89. What is the origin of the belief that Satan tortures the unsaved in Hell?
  90. Were the Waldensians like a Protestant Church in the Middle Ages?
  91. The Resurrection: early Jewish writings on it?

  92. Has the Catholic Church ever opposed interracial marriage?
  93. When and why did the Catholic Church stop the Crusades?

  94. What, if any, were the Catholic orders that opposed the Catholic Inquisition?

  95. What was the basis for saying that 11th-century Greek churches were "rebaptizing" Latins?
  96. What did Luther and Calvin believe about "Lucifer" in Isaiah 14?

  97. The unicorn as a Christological figure

  98. According to Roman Catholicism, was the 1054 excommunication of the Patriarch of Constantinople valid, in light of Leo IX's death?

  99. Which specific canons of the Second Council of Constantinople do Lutherans and Calvinists reject?
  100. How could a seventh-century heretic have possessed papal infallibility?