The Ripples of Wars By LI Haoyang 2020.10.18
The precise date is ambiguous and these information is not accuarate. This is just a timeline for the question of how many years there are when the world witnessed no war. For the purpose of simplicity, the time is cut in 1500.
1500-01-01 1550-01-01 1600-01-01 1650-01-01 1700-01-01 1750-01-01 1800-01-01 1850-01-01 1900-01-01 1950-01-01 2000-01-01 Sengoku in Japan Portuguese Colonization of Brazil Barbary Pirates in Algiers Safavid Rise in Persia Portuguese Colonization of India (Goa,Calicut) Portuguess Acquisition of Hormuz Battle of Diu in India (Portugal-Islamic Countries) Bukhara-Persia War in Central Asia Portuguese Colonization of Malacca Mughal Empire Rise in India Yarkand Khanate Rise in Central Asia Khiva Khanate Independence in Central Asia First Persia-Turkey War Ottoman Acquisition of Egypt Ottoman Acquisition of Arabian Area Cortes Conquers Azteca in Mexico Sweden Independence from Denmark Ottoman Acquisition of North Africa Ottoman-Europe Wars Spanish Colonization of New Spain (Mexico) Japanese Pirates Harrassing in China Pizarro Conquers Inca in Peru Spanish Colonization of South America Manco Inca Rebellion in Peru Ming-Mongol Wars Portuguese Acquisition of Macao Livonian War (Baltic-Russia) Northern Seven Year War (Denmark-Sweden) Spanish Colonization of Philippines Netherlands Bourgeois Revolution Battle of Lepanto (Europe-Ottoman) Portuguese Colonization of Angola Second Persia-Turkey War Russia Acquisition of Serbia Portugal-Sir Landa War Battle of Gravelines (Britain-Spain) Morocco Invasion of Songhai Empire Wangli Korean War (China,Korean-Japan) Bozhou Rebellion in China Dutch Colonization of Indonesia Dutch Colonization of Suriname Dutch Colonization of New Netherland (New York) French Colonization of Guyana Safavid-Kurdish War in Middle East Kalmar War (Denmark-Sweden) British Colonization of India The Thirty Years War in Europe (Germany States-Holy Roman Empire) British Colonization of North America Netherlands-Brazil War Hormuz War (Portugal-Persia,Netherlands,Britain) Netherlands-Macao War Dutch Colonization of Taiwan Qing Acquisition of Mongol Spanish Colonization of Taiwan Ming-Qing Transition Revolution British Colonization of Suriname Ming-Britain Conflicts Malacca War (Netherlands-Portugal) First Ireland Revolution British Bourgeois Revolution and Civil War Netherlands-Combodia War Manila War (Netherlands-Spain) Cossack Independence (Ukraine) Switzerland Independence First Anglo-Dutch Wars Russia-Poland War Palmares Rebellion in Brazil Poland-Sweden War Dutch Colonization of Sir Lanka China Retrieves Taiwan Second Anglo-Dutch War Third Anglo-Dutch War Scania War (Denmark-Sweden) Russia-Turkey War Dzungaria Rise and Acquisition of Yarkand Battle of Vienna (Europe-Ottoman) Qing-Russia Battle of Jacquesa Glorious Revolution in Britain Qing-Dzungaria War Northern War (Sweden-Russia,Poland) War of Spanish Succession Kokand Khanate Independence from Bukhara Caribbean Pirates Harrasing in Central America Afghanistan Revolution and Fall of Safavid Persia Third Persia-Turkey War War of Polish Succession Russia-Turkey War War of Austria Succession Russia-Sweden War Juan Santos Rebellion in Peru Saudi Arabian Rise in Arab Penisula Seven Years War (Britain-France) Qing-Myammar War Pontiac War in North America (Native American-Britain) Russia-Turkey War America Independence from Britain Fourth Anglo-Dutch Wars Tupac Amaru Rebellion in Peru New Granada Rebellion in Columbia Russia-Turkey War Russia-Sweden War Qing-Vietnam War The French Revolution British Colonization of South Yemen The Haiti Revolution British Colonization of Australia Hawaii Unification Fall of Venezia Republic British Colonization of Sir Lanka Second Ireland Revolution British Colonization of Fiji Islands Russia Acquisition of Great Caucasian Area Napoleonic Wars Egypt Independence from Ottoman Russia-Turkey War Fall of Holy Roman Empire British Colonization of South Africa Russia-Sweden War Spanish Revolution against France Mexico Independence from Spain Latin America Revolution against Spain Second America Independence War Kokand-Qing Conflicts Brazil Independence from Portugal Russia-Turkey War Greece Independence from Ottoman French Colonization of Africa Canut Revolts in France The Chartist Movement in Britain First Opium War (Britain-Qing) British Colonization of New Zealand Silesia Cotton Spinner Revolts America-Mexico War Italian Unification and Independence from Austria Spring of Nations (European Revolutions in 1848) Taiping Kingdom of Havean Rebellion in China The Crimean War (Russia-Turkey,Britain,France) Second Opium War (Britain-Qing) Anglo-Iran War First India Revolution against Britain French Colonization of Indochina Frecnh Protection of Lebanon American Civil War Germany Unification by Prussia Madagascar Rebellion Agoot Rebellion in China Paraguay War (Paraguay-Argentina,Uraguay,Brazil) First Cuba Revolution against Spain Russia Acqusition of Central Asia (Bkhara,Khiva,Kokand) France-Prussia War Spanish Bourgeois Revolution Paris Communism Revolution Kokand Revolution against Russia Russia-Turkey War War of the Pacific in South America (Peru,Bolivia-Chile) First Boer War (Britain-South Africa) British Protection of Egypt Qing-France War France-Madagascar War Berlin Conference on Colonization of Africa British Colonization of Papua New Guinea Russia-Britain Conflicts in Afghanistan French Colonization of Madagascar America Acquisition of Hawaii First Sina-Japanese War (Jiawu War) Second Cuba Revolution against Spain Ethiopia-Italy War America-Spain War Second Boer War(Britain-South Africa) Eight-Nation Alliance against China British Protection of Tonga Russo-Japanese War Russia Rebellions in 1905 Norway Independence from Sweden Iranian Bourgeois Revolution New Zealand Independence from Britain Turkey Bourgeois Revolution First Chinese Revolution (Xinghai Revolution) Italy-Turkey War and Italy Acquisition of Libya Balkan War (Balkan Nations-Turkey) World War I Third Ireland Revolution against Britain Arabian Revolution against Turkey Russian Communism Revolution (Initial of Soviet Union) North Yemen Independence from Ottoman Israeli Palestinian Conflicts Iran Military Coup Egypt Independence from Britain Second Chinese Revolution (Beifa War) Australia Independence from Britain Canada Independence from Britain Second Sino-Japanese War (Kangri War) Spanish Communism Revolution Spanish Civil War Ireland Independence from Britain World War II Africa Independence Movement Indonesia Independence Chinese Civil War India Independence from Britain Philippines Independence Jordan Independence from Britian First India-Pakistan War Madagascar Revolution against France Israel-Arabian Wars Sir Lanka Independence from Britain Mongol Independence from China Korean War (China-America) Libya Independence Cuban Communism Revolution Vietnam War (Soviet Union-America) Madagascar Independence from France Angola Independence from Portugal South Africa Independence from Britain China-India Conflicts Yemen Revolution Second India-Pakistan War Tonga Independence from Britain Fiji Independence from Britain Third India-Pakistan War and Bangladesh Independence Portuguese Revolution Papua New Guinea Independence from Britain Iran Islamic Revolution China-Vietnam Conflicts Afghanistan-Soviet Union War Iran-Iraq War Revolutions of 1989 in East Europe Gulf War (Iraq-America) Yemen Unification of South and North Fall of Soviet Union Bosnian Civil War Chechnya Wars in Russia Afghanistan-America War Iraq-America War Syria Civil War Libya Civil War Wars from 1500 In conclusion, it's very hard to find a single year where everywhere in the world is in peace, therefore, the peace is not time-invariant or space-invariant.
Every regime goes into wars right after its establishment and stabilization from rebellions. The land regimes strive for expansion and the ocean regimes strive for colonization, the whole war history of world since 1500 is a history of the expansion and conflicts of different empires companied with rebellions and revolutions of nations.
Everywhere there were ripples of wars, each laid a thread for the initiation of another.
The French Revolution is quite influencial:
French Support
Democratic Ideas
Tax Problem
Tax Problem
Seven Years War
War of Austia Succession
America Independence War
Fourth Anglo-Dutch War
The French Revolution
Napoleonic Wars
Fall of Portugal
Fall of Spain
Fall of Netherlands
Fall of Venizia
Fall of Holy Roman Empire
Spring of the Peoples
The Haiti Revolution
Second Ireland Revolution
Mexico Independence
Latin America Independence
Brazil Independence
Russia-Turkey War
Second America Independence War
Greece Independence
First Cuba Revolution
Spanish Revolution against France
Mexican-American War
Italian Unification
German Unification
Egypt Independence
Communist League
France-Prussia War
Paris Communism Revolution
The Chartist Movement in Britain
Canut Revolts in France
Silesia Cotton Spinner Revolts