The SIMULTANEOUS-CIVILIZATIONS Matrix in Depth — 8 Civilizations, One Timeline, One Argument

Recite Three Promises (MG-8 + MG-9 + MG-10). Display MG-19 from yesterday. Ask: 'Which of the 8 civilizations did you research at home, and what did you find?'

• Recite Three Promises
• Cold Call 3 students to share one finding from homework
• Display MG-19 + MG-2 + MG-6 simultaneously

Today we populate MG-19 with the START date, END date, PEAK period, and KEY events for each of the 8 civilizations. Late Rome 200-476 CE Western (with Eastern continuation as Byzantine). Byzantium 330-1453 CE continuous (G7 + G8 will pick up the medieval Byzantine; G6-Spring covers 330-565 CE). Han China 206 BCE - 220 CE (then Three Kingdoms 220-280 / Jin 265-420 — Chinese civilization continues, the dynasty changes). Mauryan India 322-185 BCE (carries forward via Gupta). Gupta India 320-550 CE — the Mathematical Golden Age. Sasanian Persia 224-651 CE (G7-Fall will pick up the Arab conquest 651 CE). Aksum c. 100-940 CE. Classical Maya 250-900 CE; Olmec antecedent 1200-400 BCE; Teotihuacan c. 100 BCE - 650 CE. Explain Peter Brown's 1971 Late Antiquity framework: the period 200-700 CE is NOT a 'fall' but a TRANSFORMATION — Roman institutions transform, Christianity spreads, Mediterranean unity gives way to Roman + Persian + Aksumite + early-medieval-Europe + Islamic-Arab (forthcoming) + Byzantine multi-polity world. Avoid 'Dark Ages' framing absolutely.

• Notice: the Indian Mathematical Golden Age and the 'fall of Rome' are not separate stories — they are simultaneous facts.

  model Aryabhatiya 499 CE = same year as: 23 years AFTER Western Roman 'fall' 476 CE; 28 years BEFORE Justinian's accession 527 CE; 38 years BEFORE Hagia Sophia completion 537 CE; same century as: Theodosian establishment 380 CE; founding of Constantinople 330 CE; Edict of Milan 313 CE.

  prompt What is the EXACT contemporaneity of Aryabhatiya (499 CE) with Roman events?
• Notice: what name we give a period shapes the story we can tell about it.

  model Gibbon (1776-1789) tells a single-cause story of moral decline + Christianity weakening + barbarian invasion. Peter Brown (1971) tells a multi-cause story of TRANSFORMATION — institutions changed, religions changed, populations moved, but civilization continued. Late Antiquity (200-700 CE per Brown) includes BOTH late Rome AND Byzantine continuation AND Christianization AND Sasanian peer-empire AND Aksum AND early Islamic transition.

  prompt How does Peter Brown's Late Antiquity framework differ from Gibbon's Decline-and-Fall framework?

• Cold Call: Name 3 events that happened in the SAME century as Aryabhatiya 499 CE.
• Cold Call: What is the difference between Gibbon and Peter Brown's framings?
• Cold Call: At 400 CE, what was happening in Gupta India?

MG-19 SIMULTANEOUS-CIVILIZATIONS Matrix is itself a tertiary source (a synthesis); students will spend the term examining the primary sources that underlie each civilization band.

M-6-S-CHR-02-A Chart

MG-19 SIMULTANEOUS-CIVILIZATIONS Matrix at 24x18 inches with civilization-cards laid on top showing START + END + PEAK markers; vertical reference lines at 313 CE / 330 CE / 350 CE / 380 CE / 476 CE / 499 CE / 527 CE / 537 CE / 541 CE; bright color-coded bands with Gupta in gold + Classical Maya in jade + Aksum in umber + Sasanian in royal purple + Han in jade green + Late Rome in deep red + Byzantine in imperial purple.

MG-19 Chart

24x18 inch landscape signature visualization for the unit: 8 civilization rows × 100-year-tick-mark columns from 200 BCE to 700 CE; each civilization's active period shown as a colored band with key dates marked. Critical visual claim: at the year 400 CE (vertical reference line in red), ALL 8 civilizations are ACTIVE AND THRIVING. Caption box: 'The story called "fall of Rome" hides 7 other simultaneous civilizations. At 400 CE: Late Roman Empire under Theodosius's sons / Byzantine Empire founded 70 years earlier / Han Dynasty (recently transitioned to Three Kingdoms 220 CE - 280 CE - Jin Dynasty 280 CE - 420 CE — Chinese civilization continues unbroken) / Gupta India under Chandragupta II at imperial peak / Sasanian Persia under Shapur II / Aksum Christianized 50 years earlier under Ezana / Classical Maya at Tikal-Calakmul peak / Teotihuacan at population peak (~125,000 — among the world's largest cities). This is the SIMULTANEITY ARGUMENT. There was no "Dark Age."' Style: clean educational, full color, dramatic visual impact, 24x18 print resolution. The MG-19 chart is the unit's signature visualization and is referenced in 14 of the 22 lessons.

• In pairs, take 4 of the 8 civilization-cards and place their START + END + PEAK on MG-19 with sticky-note labels.

  scaffold Civilization-cards have dates pre-printed; students place them on the matrix
• Write one sentence: 'The same century as Aryabhatiya 499 CE was also the century of _____ in Late Rome, _____ in Sasanian Persia, and _____ at Tikal Maya.'

  scaffold Sentence frame with blanks; consult MG-19 to fill

M-6-S-CHR-02-B Diagram

MG-6 18x24 inch concept map with central hub 'Classical World and Late Antiquity 200 BCE - 500 CE — Whose Golden Age?' radiating to 8 first-ring civilization nodes (Late Rome, Byzantine Continuation, Han China, Mauryan India, Gupta India, Sasanian Persia, Aksum + Early Ghana, Classical Maya + Teotihuacan), each with second-ring sub-nodes; cross-civilization dashed links: Silk Road connecting Han to Sasanian to Late Rome; Indian Ocean trade connecting Gupta India to Aksum to Han; Buddhism connecting Mauryan India to Han China; Christianity connecting Late Rome to Aksum to Byzantine; numerals connecting Gupta India to later Arab world (G7-Fall preview).

MG-6 Diagram

18x24 inch concept map with central hub node 'Classical World and Late Antiquity 200 BCE - 500 CE — Whose Golden Age?' radiating to 8 first-ring civilization nodes (Late Rome, Byzantine Continuation, Han China, Mauryan India, Gupta India, Sasanian Persia, Aksum + Early Ghana, Classical Maya + Teotihuacan), each with second-ring sub-nodes (4-6 key concepts per civilization) and third-ring primary-source nodes (the actual translated source used in the corresponding lesson). Cross-civilization links shown as dashed lines: Silk Road connecting Han to Sasanian to Late Rome; Indian Ocean trade connecting Gupta India to Aksum to Han; Buddhism connecting Mauryan India to Han China; Christianity connecting Late Rome to Aksum to Byzantine; numerals (decimal place value with zero) connecting Gupta India to later Arab world (G7-Fall preview). Style: clean educational, full color, 18x24 print resolution.

• What was happening in Gupta India in the SAME century as Constantine's Edict of Milan 313 CE? Name 1 specific Gupta event with date.
• Restate the SIMULTANEITY ARGUMENT in your own words (one sentence).

• Restate the compelling question; preview Lesson 3 (Diocletian and the Late Roman world via Diocletian's Price Edict primary source)

• Choose one civilization on MG-19. Find ONE source online (museum educator portal, Wikipedia article, UNESCO World Heritage Site description) that mentions a CONTEMPORARY descendant community of that civilization. Write 2-3 sentences on what the source said about modern descendants.