Digit One 1

1
U+0031
Download

Symbol Meaning

The Arabic digit one belongs to the numerals which are widely spread around the planet. This positional counting system appeared in India in the 5th century or even earlier. The Arabs borrowed it from the Indians. Al-Khwarizmi wrote a book called “On the Indian Calculation,” which helped to spread the Arabic digits. Later this counting system came to Europe through Spain. Pope Sylvester II advocated for the replacement of Roman numerals with Arabic ones in the 10th century. In the 12th century, Al-Khwarizmi's book “On the Indian Calculation” was translated into Latin, which played an important role in the adoption of Arabic numerals.

The symbol “Digit One” is included in the “ASCII digits” subblock of the “Basic Latin” block and was approved as part of Unicode version 1.1 in 1993.

Text is also available in the following languages: Русский;

Unicode Name Digit One
Unicode Number
HTML Code
CSS Code
Unicode Block Basic Latin
Unicode Subblock ASCII digits
Unicode Version 1.1 (1993)
Alt Code
Version 1.1
Block Basic Latin
Type of paired mirror bracket (bidi) None
Composition Exclusion No
Case change 0031
Simple case change 0031
ID_Continue +
XID_Continue +
Grapheme_Base +
age 1.1
scripts Common
Encoding hex dec (bytes) dec binary
UTF-8 31 49 49 00110001
UTF-16BE 00 31 0 49 49 00000000 00110001
UTF-16LE 31 00 49 0 12544 00110001 00000000
UTF-32BE 00 00 00 31 0 0 0 49 49 00000000 00000000 00000000 00110001
UTF-32LE 31 00 00 00 49 0 0 0 822083584 00110001 00000000 00000000 00000000
Copied!