Person

Ken Ham

Australian-born American evangelical apologist (b. 1951), founder and CEO of Answers in Genesis (AiG), founder of the Creation Museum (2007, Petersburg, Kentucky) and Ark Encounter (2016, Williamstown, Kentucky). The most institutionally-prominent advocate of young-earth creationism (YEC) in the contemporary American evangelical landscape, and one of the most polarizing figures in the wider Christianity-and-science conversation.

Ham's codex relevance is concentrated in Young Earth Creationism, Genesis Interpretation Spread, and the Origins and Cosmology / Origins and Science family. He represents the YEC pole on the Genesis Interpretation Spread (vs Day-Age, Framework, Functional Cosmic Temple) and is the most prominent contemporary popularizer of the biblical-authority-requires-young-earth argument that drives much American evangelical creationism.

Biographical sketch

Background: Born in Cairns, Queensland, Australia. B.App.Sc. in environmental biology (Queensland Institute of Technology, 1975); Diploma in Education (University of Queensland). Trained as a science teacher.
Australian period: Co-founded the Creation Science Foundation of Australia (1980), which became Answers in Genesis-Australia, then split off as Creation Ministries International (CMI). The 2005-2007 Ham/AiG vs CMI split was the most significant institutional fracture in contemporary YEC.
Move to USA: Emigrated to the U.S. in 1987 to work with the Institute for Creation Research; founded Answers in Genesis-USA in 1994.
Major institutional building:
Creation Museum opened 2007 in Petersburg, Kentucky, 75,000+ sq ft exhibits presenting young-earth creationism with substantial production values.
Ark Encounter opened 2016 in Williamstown, Kentucky, a 510-foot full-scale replica of Noah's ark per the cubits-as-21-inches dimension reading, presenting global-flood YEC.

Major public engagements

Ham vs Nye debate (February 4, 2014, Creation Museum), the most-watched contemporary creation-vs-evolution debate (3M+ live YouTube views), with Bill Nye taking the evolutionary-mainstream side. The widely-quoted Ham line "There's a book… it's called the Bible", when asked what evidence would change his mind, became symbolic of the debate dynamic and the YEC commitment to biblical authority as evidence-trumping.
Books: The Lie: Evolution (Master Books, 1987); Genesis and the Decay of the Nations (Master Books, 1991); The New Answers Book series (Master Books, 4 volumes 2006-2013); Six Days (Master Books, 2013); One Race One Blood (with A. Charles Ware, Master Books, 2010, on race and biblical anthropology).
Answers Magazine, bi-monthly YEC popular magazine published by AiG; substantial readership in American evangelical homeschooling and creationist circles.

The YEC position Ham defends

The Answers-in-Genesis line, which Ham has codified into the most-recognized YEC framework in American evangelicalism:

The earth is ~6,000 years old, per a literal-historical reading of Genesis 1-11 plus the Masoretic-text genealogies of Genesis 5 and 11.
Creation occurred in six 24-hour days, c. 4004 BC (Ussher chronology, though Ham acknowledges minor chronological variations).
The Flood of Genesis 6-9 was global, lasted ~371 days, and is the explanation for most of the geological column (sedimentary layers laid down rapidly during and after the flood).
All extant animals descended from kinds that were on the Ark (the YEC "baraminology", animals adapt and speciate within created kinds but do not transition between kinds).
Death entered the world only through Adam's Fall. No animal death, no carnivory, no disease before Genesis 3, a critical theological commitment because YEC links the historicity of Adam, the historicity of the Fall, and the theological coherence of the gospel (Romans 5:12-19; 1 Corinthians 15:21-22).
Biblical authority requires young-earth. Compromise on the age of the earth, Ham argues, undermines biblical authority across the canon, and is the proximate cause of much evangelical drift / deconversion.

This position is presented in Young Earth Creationism as one of the four valid Christian readings of Genesis (per Genesis Interpretation Spread, YEC / Day-Age / Framework / Functional Cosmic Temple). The codex holds all four as live in-house options compatible with full evangelical orthodoxy; the disagreement is hermeneutical, not credal.

Critiques and disputes

Ham's positions and methods have substantial Christian critics:

Old-Earth Creationists (Hugh Ross, Reasons to Believe; Gerald Schroeder): the day-age reading is exegetically and scientifically defensible without compromising biblical authority. See Old Earth Creationism and Day-Age Creationism.
Evolutionary Creationists / Theistic Evolutionists (Francis Collins, BioLogos): God created via evolutionary processes; Genesis is theologically true without being scientifically literal.
Framework / Functional Cosmic Temple readers (Meredith Kline, John Walton): Genesis 1 is literary-theological structure, not material-chronological account. See Genesis Interpretation Spread.
Ham's own former Australian collaborators (Creation Ministries International, 2005-2007 split): doctrinal and institutional disagreements that produced two competing YEC organizations.
Mainstream Christian academia (most theology and biology faculty at evangelical institutions outside Liberty / Cedarville / similar): YEC as presented by Ham is exegetically possible but scientifically untenable and apologetically counterproductive.

The codex posture per Genesis Interpretation Spread: present each position in its strongest form; the dispute is in-house and serious; Ham represents one valid pole.

Influence on American evangelical culture

Whatever one's view of YEC, Ham's institutional building has materially shaped American evangelical Christianity:

The Creation Museum and Ark Encounter draw ~1M visitors per year combined.
AiG publishes a substantial homeschool curriculum (God's Design, Answers Bible Curriculum) used by tens of thousands of evangelical homeschoolers.
Answers Magazine circulation in the hundreds of thousands.
Ham's social-media presence (Twitter/X, Facebook) is one of the highest-engagement evangelical-leader accounts.

The cultural footprint vastly exceeds the academic credibility, which is the source of much of the controversy. AiG's actual scientific output (in peer-reviewed mainstream science) is essentially zero; the cultural output is enormous. Critics see this as the gap between the popular and the academic; supporters see this as evidence-distrust toward an academy they consider methodologically committed to naturalism.