左撇子们宣言，建立国际左撇子日的目的在于团结世界各地的左撇子为争取自身的利益而斗争，唤起全社会对左撇子问题的关注，提醒人们在一个以右撇子为主的社会中改进产品的设计并更多考虑左撇子的方便与安全，消释数千年来在各种文化中都存在而今天也还在不断制造着的对左撇子的偏见。
有几十个国家的左撇子组织庆祝这一节日，遍布世界各洲。欧洲是左撇子组织活跃的地方，庆祝活动更为隆重。（中国进出口网）
"Lefty" is not a disease, but a normal physiological phenomenon, which is formed with a certain genetic relationship, wheras the medical filed is inconclusive. Left and right brain have different functions - the left brain controls logic, language, abstract thinking, while the right brain has music, painting, space geometry, imagination, and integration functions; for the "left-handed", the right brain is his advantage hemisphere.
The lefty declare, the purpose to establish an international lefty day is to tie up the lefty around the world, to struggle for their own interests, to arouse the whole society's attention to the issue left-hander and to remind people to improve product design for the lefty’s convenience and safety in a right-handed dominated society, therefore clear up prejudice against left-handers existing for thousands of years even still existing today in a variety of cultures.
There are lefty organizations in dozens of countries celebrating this festival, covering all the continents of the world. Europe is a place wher lefty organizations are active and the celebrity activities must be more ceremonious.
