Ordering

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.