vitrine · corridor · pairwise

1900s ↔ 1970s

Fact families the measure guard certifies comparable for this pair. Everything else renders as the gap it is. Every value links to its placard.

Rooms 1900s 1970s all corridors

Budget composition

’00srent: 12.95% — 1900s12.95clothing: 14.04% — 1900s14.04food: 42.54% — 1900s42.54other: 30.47% — 1900s30.47rent 12.95% · clothing 14.04% · food 42.54% · other 30.47%’70shousing: 26% — 1970s26apparel: 6.4% — 1970s6.4food: 17.1% — 1970s17.1healthcare: 5.3% — 1970s5.3transportation: 17.6% — 1970s17.6other: 21.7% — 1970s21.7housing 26% · apparel 6.4% · food 17.1% · healthcare 5.3% · transportation 17.6% · other 21.7%

Life expectancy at birth

years (all races, both sexes)

⚠ Decades before the 1960s published white-only male/female life tables with no all-races total — the placard carries the sexed figures and the chart renders the gap rather than a spliced concept.
1900s · Tier A
48.2 years (white male), 51.1 years (white female) — see the placard
1970s · Tier A
67.1 male, 74.8 female (70.8 total, all races)

Infant mortality

deaths under age 1 per 1,000 live births

1900s · Tier A
~100 per 1,000 live births
1970s · Tier A
20.0 per 1,000 live births

Homeownership

% of occupied housing units owner-occupied

1900s · Tier A
~46.5% (national, all households)
1970s · Tier A
62.9%

Telephone

% of households

⚠ 1910s–1930s sources counted telephones per 1,000 population, not households — those decades render as gaps rather than a unit splice.
⚠ The 2020s point counts cell phones (92.7%); the landline share is on the placard.
1900s · Tier A
Telephone: 9.2 per 1,000 population (1898), ~5% of households. Automobile: <1% (registration incomplete pre-1910). Electricity: <5% of homes (urban only). Radio: not yet commercial.
1970s · Tier A
90.5%

Women's unpaid home production

hours per week, prime-age women

⚠ The 2020s source (ATUS) measures all-adult household activities, a concept splice from Ramey's women's series — flagged, not smoothed, so the chart renders it as a gap and the placard carries both figures.
1900s · Tier C
46.8
1970s · Tier C
32.1

Men's unpaid home production

hours per week, prime-age men

1900s · Tier C
3.9
1970s · Tier C
12.1

Food's share of spending

% of household expenditure

⚠ Populations differ across the century — 1901 wage-earner families vs modern consumer units; every placard names who was measured.
⚠ The 1950s point is the nearest available survey (CEX 1960–61), stated plainly rather than back-cast.
1900s · Tier A
42.54%
1970s · Tier A
Food $2,089/yr (17.1% of expenditure). Food at home $1,543 (74% of food), food away from home $546 (26%). Key items: beef $242, bakery $139, fresh milk $130, pork $134, poultry $69, other meats $61, fish $40, eggs $37, cereals $46. Total expenditure: $12,226.