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History
Story
R. G. Collingwood
1889
Philosophy of History
Collingwood helped show that history is not just collecting facts. It is the disciplined reconstruction of past human thought and action from surviving evidence.
Sun 7 Jun 2026
(1 week ago)
Updated 4 weeks ago.
Philosophy
Story
Rudolf Steiner
Lived from 1861 to 1925, aged 64.
Anthroposophy and Spiritual Science
Spirituality
Waldorf schools often use natural play spaces because Steiner’s education valued nature, sensory experience, imagination, and the development of the whole child.
Thu 4 Jun 2026
(2 weeks ago)
Updated 2 weeks ago.
Science
Story
Last Non-Cynodont Therapsids
~205 Million years ago
Mammal Evolution
Dicynodonts were late-surviving non-cynodont therapsids: mammal-side animals, but not on the direct road to mammals.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
Last Non-Mammaliaform Cynodonts
~125 Million years ago
Mammal Evolution
Tritylodontids were not mammals, but they were late-surviving mammal-side cousins that carried many mammal-like traits without crossing into the mammaliaform line.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
First Therapsids
~272 Million years ago
A more upright posture.
Mammal Evolution
Therapsids mark the point where the mammal-side branch became more active, more specialized, and more clearly aimed toward the later mammal body plan.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
Last Non-Mammal Mammaliaforms
~66 Million years ago (tentative placeholder date)
Mammal Evolution
Not every mammaliaform became a mammal; some were late-surviving side branches near the mammal line.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
First Crown Mammals
~165 Million years ago (+/- 5 million)
Mammal Evolution
Crown mammals are the branch that includes the common ancestor of all mammals alive today and every descendant of that ancestor.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
First Cynodonts
~260 Million years ago
Mammal-like jaw and breathing.
Mammal Evolution
Cynodonts were a more advanced branch of therapsids where the mammal-like jaw, teeth, palate, and breathing package began to come together.
Sat 23 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
Last Non-Therapsid Synapsids
~262 Million years ago (+/- 2 million)
Not upright like Therapsids.
Mammal Evolution
Late caseids represent the fading old-line synapsids: still mammal-side animals, but not yet therapsids.
Thu 21 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
First Synapsids
~308 Million years ago
Single temporal opening behind the eye.
Mammal Evolution
Early synapsids looked reptile-like, but they were not on the reptile line. They were the first recognizable step on the long road toward mammals.
Thu 21 May 2026
(4 weeks ago)
Updated 4 weeks ago.
Science
Story
Diatoms Emerge
182 Million years ago (+/- 5 million)
Glass-like silica cell walls
Plant Evolution
Diatoms began as tiny glass-shelled “silica” algae, with round centric forms appearing first and elongated pennate forms later adding direction, symmetry, and movement to the microscopic world.
Fri 15 May 2026
(1 month ago)
Updated 1 month ago.
TST COLUMN
03 May 2026
Philosophy
Story
Book: The Idea of History
1946
Published posthumously.
Philosophy of History
Collingwood helped show that history is not just collecting facts. It is the disciplined reconstruction of past human thought and action from surviving evidence.
Sun 3 May 2026
(1 month ago)
Updated 4 weeks ago.
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