The annual observance of the International Day of Disabled Persons was proclaimed in 1992, by the
United Nations General Assembly resolution 47/3. It aims to promote the rights and well-being of persons with disabilities in all spheres of society and development, and to increase awareness of the situation of persons with disabilities in every aspect of political, social, economic and cultural life.
The 2018 theme is "Empowering persons with disabilities and ensuring inclusiveness and equality."
This collection emphasizes architecture that facilitates this goal.
Source: http://www.un.org/en/events/disabilitiesday/