Parenting knowledge is not timeless. Here are key moments from across the site on one timeline.
Martin Couney displayed premature infants in incubators at fairs, popularising neonatal warmth technology.
In 1900, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1912, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1917, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
In 1924, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1929, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
Jean Piaget published sensorimotor descriptions of infant object permanence development.
In 1934, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1936, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1941, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
Benjamin Spock's Common Sense Book of Baby and Child Care reached millions of US parents.
In 1946, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1948, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1951, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
John Bowlby linked early separation from mothers to later distress, challenging hospital nursery norms.
In 1953, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
In 1958, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1960, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
Mary Ainsworth began observational work in Uganda that led to attachment classification.
In 1963, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 1965, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
Mary Ainsworth published attachment classification procedure at Johns Hopkins.
In 1970, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1972, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
The Continuum Concept popularised constant carrying among Western readers.
In 1975, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 1977, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
Edgar Rey Sanabria in Bogotá showed skin-to-skin could stabilise preterm infants without costly incubators.
In 1982, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1984, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
SIDS research began linking prone sleeping to higher infant mortality.
In 1987, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 1989, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
American Academy of Pediatrics campaign reduced SIDS by recommending supine sleep position.
In 1994, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 1996, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
In 1999, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
WHO promoted kangaroo mother care globally for preterm and low-birth-weight infants.
In 2001, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
In 2006, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 2008, research or policy on autonomy and language advanced through studies, programmes, or cultural debate.
Baby-Friendly Hospital Initiative expanded rooming-in and breastfeeding support standards.
Gwen Dewar synthesised evidence-based infant sleep and development for parents online.
In 2011, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 2013, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
Pediatrician Harvey Karp popularised "fourth trimester" framing for the first three months.
American Academy of Pediatrics aligned complementary feeding start near six months.
In 2018, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
Pandemic rules temporarily restricted partners and skin-to-skin in some hospitals worldwide.
Infant social exposure limited during lockdowns — later studies tracked communication milestones.
OECD nations expanded paid leave discussions citing newborn health and maternal recovery data.
In 2023, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
Guidelines shifted toward early peanut/egg introduction after LEAP trial replication discussions.
In 2025, research or policy on play-based learning and social entry advanced through studies, programmes, or cultural debate.
In 2030, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 2035, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 2042, research or policy on competence and peer belonging advanced through studies, programmes, or cultural debate.
In 2047, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.
In 2059, research or policy on identity and emerging autonomy advanced through studies, programmes, or cultural debate.