1970 US Open (tennis) sudden death at 4-4. A red flag would be put up by the umpire’s seat to draw fan attention to the tiebreaker in progress. Most players disapproved of the tiebreaker but the visitors loved it. Ken Rosewall def. Tony Roche, 2–6, 6–4, 7–6, 6–3 Margaret Court defeated Rosemary Casals, 6–2, 2–6, 6–1 Pierre Barthès / Nikola Pilić defeated Roy Emerson / Rod Laver, 6–3, 7–6, 4–6, 7–6 Margaret Court / Judy Tegart Dalton defeated Rosemary Casals / Virginia Wade, 6–3, 6–4 Margaret Court / Marty Riessen defeated Judy Tegart Dalton / Frew McMillan, 6–4, 6–4 1970 US Open (tennis) The
Social innovation three key dimensions to social innovation. First, innovations are usually new combinations or hybrids of existing elements, rather than completely new. Second, their practice involves cutting across organizational or disciplinary boundaries. Lastly, they leave behind compelling new relationships between previously separate individuals and groups. Social innovation is also gaining visibility within academia. Since 2014, a subdomain of social innovation has been defined in relation to the introduction of digital technologies. The subdomain is called digital social innovation and refers to "a type of social and collaborative innovation in which innovators, users and communities collaborate using digital technologies to co-create knowledge