Early works to 1800 Astronomy 2 Arabic language 1 Astronomy, Arab 1 Batinites 1 Condolence notes 1 Criticism and interpretation 1 Diet 1 Eclipses 1 Economics 1 Finance, Public 1 Finance, Public (Islamic law) 1 Food 1 Hygiene 1 Imamate 1 Intuition 1 Islam and state 1 Knowledge, Theory of 1 Law and legislation 1 Letter writing, Arabic 1 Markets 1 Muhtasib 1 Nutrition 1 Philosophy, Islamic 1 Religious aspects Islam 1 Religious aspects Islam Early works to 1800 1 Salutations 1 State supervision Early works to 1800 1 Style Early works to 1800 1 Theology 1