Talk:List of EC numbers (EC 7)

History
In school I learned that there are 6 general groups. With EC 7 I suppose there are now 7.

Would it be possible to add the year when this was added, along with an explanation? Right now there isn't any history-relevant section but I am almost 100% certain that number 7 was not always there. 2A02:8388:1602:6D80:3AD5:47FF:FE18:CC7F (talk) 16:13, 27 April 2021 (UTC)