suffered from poor design of products and environments as well. Clarkson and Coleman describe the emergence of inclusive design in the United Kingdom as a synthesis of existing projects and movement. Coleman also published the first reference to the term in 1994 with The Case for Inclusive Design, a presentation at the 12th Triennial Congress of the International Ergonomics Association. Much of this early work was inspired by an aging population and people living for longer times in older ages as voiced by scholars like Peter Laslett. Public focus on accessibility further increased with the passage of the passage of the Americans with Disabilities Act of 1990, which expanded the responsibility of accessible design to include both public and private entities. In the 1990s, the United States followed the United Kingdom in shifting focus from universal design to inclusive design. Around this time, Selwyn Goldsmith (in the UK) and Ronald 'Ron' Mace (in the US), two architects who had both survived polio and were wheelchair users, advocated for an expanded view of design for everyone. Along with Mace, nine other authors from five organizations in the United States developed the Principles of Universal Design in 1997. In 1998, the United States amended Section 508 of the Rehabilitation Act to include inclusivity requirements for the design of information and technology. In 2016, the Design for All Showcase at the White House featured a panel on inclusive design. The show featured clothing and personal devices either on the market or in development, modeled by disabled people. Rather than treating accessible and inclusive design as a product of compliance to legal requirements, the showcase positioned disability as a source of innovation. Differentiation from accessible and universal design Inclusive design is often equated to accessible or universal design, as all three concepts are related to ensuring that products are usable by all people. However, subtle distinctions make each approach noteworthy. Accessibility Accessibility is oriented towards the outcome of ensuring that a product supports individual users' needs. Accessible design is often based upon compliance with government- or industry-designated guidelines, such as Americans with Disabilities Act (ADA) Accessibility Standards or Web Content Accessibility Guidelines (WCAG). As a result, it is limited in scope and often focuses on specific accommodations to ensure that people with disabilities have access to products, services, or environments. In contrast, inclusive design considers the needs of a wider range of potential users,