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Child development stages

theoretical milestones of child development

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 3, 2026
Entity authorityQ5097839
Source-derived summary

Child development stages are the theoretical milestones of child development, some of which are asserted in nativist theories. This article discusses the most widely accepted developmental stages in children. There exists a wide variation in terms of what is considered "normal", caused by variations in genetic, cognitive, physical, family, cultural, nutritional, educational, and environmental factors. Many children reach some or most of these milestones at different times from the norm.

Holistic development sees the child in the round, as a whole person – physically, emotionally, intellectually, socially, morally, culturally, and spiritually. Learning about child development involves studying patterns of growth and development, from which guidelines for 'normal' development are construed. Developmental norms are sometimes called milestones – they define the recognized development pattern that children are expected to follow. Each child develops uniquely; however, using norms helps in understanding these general patterns of development while recognizing the wide variation between individuals.

One way to identify pervasive developmental disorders is if infants fail to meet the developmental milestones in time or at all.

Table of milestones

Infancy

Newborn

Physical development

Infants are usually born weighing between 5 pounds 8 ounces (2,500 g) and 8 pounds 13 ounces (4,000 g), but infants born prematurely often weigh less.

Editorial summary

This brief starts where responsible research should: with the source description of “Child development stages” as theoretical milestones of child development. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current 205-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Child, development and stages can be independently traced.
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The subject matters to the general reference register because the source frames it as theoretical milestones of child development. Its deeper value depends on whether names, dates, institutions and citations support that framing.

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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 3, 2026. The linked authority identifier is Q5097839. None of the 0 selected statements returned an explicit reference.

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The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from Child development stages” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.