UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Ibihe
Ibishushanyo 1.503 birahari • Ibyiciro bito 17
Reba Ibyiciro Bito
Abanyaviking
Abaroma
Abanyamisiri
Ubugereki bwa Kera
Igihe cya Edo
Mbere y'Amateka
Kera
Ibihe byo Hagati
Kigezweho
Nyuma ya Kigezweho
Industry 1.0 — Steam & Mechanization (1760)
Industry 2.0 — Electricity, Steel & Oil (1870)
Industry 3.0 — Assembly Line & Mass Production (1913)
Industry 4.0 — Computers & Digital Automation (1960)
Industry 5.0 — Open Knowledge & AI Collaboration (2026)
Renaissance (1400–1600)
Scientific Revolution (1600–1760)
Ibishushanyo (1.503)

The Ventilated Pit Latrine
na Bob
Ibinyabuzima
21
0
0
0
0
0

Chlorination and the Residual
na Charlie
Ubutabire
16
0
0
0
0
0

The Ceramic Candle Filter
na Clay
Mekanike y'Amazi
30
0
0
0
0
0

The S-Bend Water Trap
na Emma
Mekanike y'Amazi
37
0
0
0
3
0

The Siphonic Flush Cistern
na Emma
Mekanike y'Amazi
28
0
0
0
0
0

The Septic Tank
na Karen
Ibinyabuzima
24
0
0
0
1
0

The Float Valve
na Martin
Mekanike y'Amazi
19
0
0
0
1
0

The Egg-Shaped Sewer
na Martin
Mekanike y'Amazi
27
0
0
0
0
0

The Water Tower
na Volt
Mekanike y'Amazi
13
0
0
0
0
0

The First Artificial Cold
na Charlie
Ubumenyi bw'Ubushyuhe
34
0
0
0
1
0

Ammonia Refrigeration Machine
na Emma
Ubumenyi bw'Ubushyuhe
26
0
0
0
2
0

Insulated Shipping Container
na Karen
Ubumenyi bw'Ubushyuhe
0
0
0
0
0
0

Ice Harvesting
na Martin
Ubumenyi bw'Ubushyuhe
21
0
0
0
0
0

Refrigerated Ship
na Mary
Ubumenyi bw'Ubushyuhe
19
0
0
0
0
0

Liquefying Air
na Penny
Ubumenyi bw'Ubushyuhe
32
0
0
0
0
0

Absorption Refrigerator
na Volt
Ubumenyi bw'Ubushyuhe
25
0
0
0
0
0

Vapour-Compression Refrigeration
na Emma
Ubumenyi bw'Ubushyuhe
16
0
0
0
5
0

Vacuum Flask
na Penny
Ubumenyi bw'Ubushyuhe
21
0
0
0
0
0

Quick-Freezing Food
na TheChef
Ubumenyi bw'Ubushyuhe
24
0
0
0
1
0

Hydraulic Brake
na Emma
Mekanike
29
0
0
0
0
0