Palm branch climbed palm trees to call the faithful to prayer, from which the minaret developed. In the Quran (19:16–34), Mary is said to have given birth to Jesus under a date palm. In northern Sudan, the "doum" palm is the symbol of endurance "(doum)", and particularly of the Muslim saint who gave his name to Wad Hamid. The palm also appears on a number of coins from Islamic states, for example the 1970 Tunisian 1 dinar issue honoring the Food and Agriculture Organization, and several Iraqi coins of the 1970s. The Latin motto of Lord Nelson is "Palmam qui meruit ferat",
Palm wine the sap to prevent it from fermenting. "Neera", similar to fruit-juice products. is relatively rich in potassium. In India, palm wine or toddy is served as either "neera" or "pathaneer" (a sweet, non-alcoholic beverage derived from fresh sap) or "kallu" (a sour beverage made from fermented sap, but not as strong as wine). Palm sap contains natural yeasts, which perform the fermentation of glucose to alcohol, as well as acetobacter, which subsequently converts the alcohol to acetic acid (vinegar). Optimal consumption time is one day after tapping, when the vinegar content is minimal; beyond this time, it becomes increasingly sour.