How many letters are there in the alphabet? - Worldometer
https://www.worldometers.info/languages/how-many-letters-alphabet26 The English Alphabet consists of 26 letters: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z. Total number of letters in the alphabet 23 letters (A B C D E F G H I K L M N O P Q R S T V X Y Z) are the first 23 letters of the 29 original Old English Alphabet recorded in the year 1011 by the monk Byrhtferð.
Alphabetical order - Wikipedia
https://en.wikipedia.org/wiki/Alphabetical_orderAlphabetical order is a system whereby character strings are placed in order based on the position of the characters in the conventional ordering of an alphabet. It is one of the methods of collation. In mathematics, a lexicographical order is the generalization of the alphabetical order to other data types, such as sequences of numbers or other ordered mathematical objects. When applied to strings or sequencesthat may contain digits, numbers or more elaborate types o…