Ahom is a Unicode block containing characters used for writing the Ahom alphabet, which was used to write the Ahom language spoken by the Ahom people in Assam between the 13th and the 18th centuries.

The block size was expanded by 16 code points in Unicode version 14.0 (version 13: 1173F → version 14: 1174F), and 7 more characters were defined. This was the first block to expand since Unicode version 1.1.

Ahom[1][2] (PDF)
0123456789ABCDEF
U+1170x𑜀𑜁𑜂𑜃𑜄𑜅𑜆𑜇𑜈𑜉𑜊𑜋𑜌𑜍𑜎𑜏
U+1171x𑜐𑜑𑜒𑜓𑜔𑜕𑜖𑜗𑜘𑜙𑜚𑜝𑜞𑜟
U+1172x𑜠𑜡𑜢𑜣𑜤𑜥𑜦𑜧𑜨𑜩𑜪𑜫
U+1173x𑜰𑜱𑜲𑜳𑜴𑜵𑜶𑜷𑜸𑜹𑜺𑜻𑜼𑜽𑜾𑜿
U+1174x𑝀𑝁𑝂𑝃𑝄𑝅𑝆
Notes 1.^ As of Unicode version 17.0 2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Ahom block:

VersionFinal code pointsCountL2 IDWG2 IDDocument
8.0U+11700..11719, 1171D..1172B, 11730..1173F57Hosken, Martin; Morey, Stephen (2010-09-17), Preliminary Proposal to add the Ahom Script in the SMP of the UCS
Hosken, Martin; Morey, Stephen (2012-07-02), Proposal to add the Ahom Script in the SMP of the UCS
Anderson, Deborah; McGowan, Rick; Whistler, Ken (2012-07-21), "V. AHOM", Review of Indic-related documents and Recommendations to the UTC
Hosken, Martin (2012-10-23), Revised Proposal to add the Ahom Script in the SMP of the UCS
Moore, Lisa (2012-12-04), "Consensus 133-C16", UTC #133 Minutes
, )"M60.09", Unconfirmed minutes of WG 2 meeting 60, 2013-05-23
Cummings, Craig (2021-08-03), "Consensus 168-C3", Draft Minutes of UTC Meeting 168, Remove the assignment of GCB=SpacingMark for U+11720..U+11721 AHOM VOWEL SIGN A and AA, letting them default to GCB=Other, for Unicode version 14.0.
11.0U+1171A1Hosken, Martin; Morey, Stephen (2015-10-26), Proposal to add one extra character to the Ahom Block
Moore, Lisa (2015-11-16), "D.13", UTC #145 Minutes
14.0U+11740..117467Morey, Stephen (2020-09-29), Proposal to encode additional signs for the Tai Ahom script
Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Moore, Lisa; Constable, Peter; Liang, Hai (2020-10-01), "9. Ahom", Recommendations to UTC #165 October 2020 on Script Proposals
Moore, Lisa (2020-10-27), "Consensus 165-C17", UTC #165 Minutes