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  2. Beginning of human personhood - Wikipedia

    en.wikipedia.org/wiki/Beginning_of_human_personhood

    Discussions of the beginning of personhood may be framed in terms of the moment life begins. James McGrath and others argue the beginning of personhood begins is not interchangeable with the beginning of a human life. [6] [7] [8]: 845 According to Jed Rubenfeld, the terms human being and person are not necessarily synonymous. [7] [9] [10] [11]

  3. Defining when human life begins is not a question ... - AOL

    www.aol.com/news/human-life-begins-politics-not...

    Science can observe these various phases of fetal development but cannot determine when human life begins. UrsaHoogle/E+ via Getty ImagesNow that the U.S. Supreme Court has given states final say ...

  4. Ensoulment - Wikipedia

    en.wikipedia.org/wiki/Ensoulment

    The book investigates the theoretical, moral, and biological issues surrounding the debate over the beginning of human life. Following a detailed analysis of the history of the question, Reverend Ford argues that a human individual could not begin before definitive individuation about two weeks after fertilization.

  5. Development of the human body - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_human_body

    Human organs and organ systems develop in a process known as organogenesis. This begins in the third week of embryonic development, when the gastrula forms three distinct germ layers, the ectoderm, mesoderm and endoderm. The ectoderm will eventually develop into the outer layer of skin and nervous system.

  6. Personhood - Wikipedia

    en.wikipedia.org/wiki/Personhood

    Catechism 2270 reads: "Human life must be respected and protected absolutely from the moment of conception. From the first moment of his existence, a human being must be recognized as having the rights of a person – among which is the inviolable right of every innocent being to life." [66]

  7. Beginning of pregnancy controversy - Wikipedia

    en.wikipedia.org/wiki/Beginning_of_pregnancy...

    The viewpoint that pregnancy, or at least morally significant human life, begins at the exact moment that sperm and egg interact is highly controversial, although it is commonly held by groups such as the Roman Catholic Church and many traditionally religious individuals, and other alternate viewpoints are put forth. [1]

  8. History of life - Wikipedia

    en.wikipedia.org/wiki/History_of_life

    The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...

  9. Human history - Wikipedia

    en.wikipedia.org/wiki/Human_history

    Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers . They migrated out of Africa during the Last Ice Age and had spread across Earth 's continental land except Antarctica by the end of the Ice Age 12,000 years ago.