1-Origins and Historical Formation.1.1-Heyday of Hadithism.1.2-Approach to Demonstrative Fiqh.1.3-Emergence of the Term \Akhbari\.1.4-Decline of Akhbarism.2-Radical Akhbaris.3-Moderate Akhbaris.4-Combat against Akhbarism.4.1-Al-Wahid al-Bihbahani.4.2-Al-Shaykh al-Ansari.4.3-Kashif al-Ghita'.5-Geographical Distribution.6-Major Disagreements between Akhbaris and Usulis.6.1-Illegitimacy of Ijtihad.6.2-Restriction of Evidence to the Qur'an and Sunna.6.3-Other Disagreements.7-Relation with Shaykhiyya.8-European Writers on Akhbari-Usuli Bifurcation.9-References.