Numemo

History dates made easy to remember

Every core U.S. History & APUSH anchor date (10 units, 101 dates) encoded with the phonetic Major System: concrete peg words and vivid visual scenes for tests, finals, and the AP exam.

Periods 1–2 · Colonial Era

Pre-Columbian contact, settlement, and colonial North America (1492–1754)

Periods 3–4 · 1754–1848

American Revolution, Constitution, Early Republic, and Jacksonian Democracy

Periods 5–6 · 1848–1898

Civil War, Reconstruction, Westward Expansion, and the Gilded Age

Period 7 · 1900–1945

Progressive Era, World War I, Great Depression, New Deal, and World War II

Periods 8–9 · 1945–Present

Cold War, Civil Rights Movement, and Modern America since 1979

How the phonetic Major System works (0–9)

Sound → digit conversion table (0–9)
0
s, z, soft c /s/ /z/ Zero starts with z
1
t, d, th /t/ /d/ /θ/ /ð/ t has 1 downstroke
2
n, ng /n/ /ŋ/ n has 2 downstrokes
3
m /m/ m has 3 downstrokes
4
r, -er /ɹ/ /ɚ/ /ɝ/ fouR ends with r
5
l /l/ /ɫ/ Roman L = 50
6
sh, ch, j, soft g /ʃ/ /ʒ/ /tʃ/ /dʒ/ J looks like a mirrored 6
7
k, hard c, g, q /k/ /ɡ/ K looks like two 7s
8
f, v, ph /f/ /v/ Cursive f has two loops like 8
9
p, b /p/ /b/ p and b mirror a 9

Golden rules (General American pronunciation): vowels and silent or glide letters (w, h, y) carry no digit · silent letters are ignored (knife /naɪf/ → 28) · doubled letters count once (bell → 95, hammer → 34) · sound, never spelling, decides.