[
	{
		columnNumber: 0,
		era:"Ancient",
		techCost: 20,
		buildingCost:40,
		techs:[
			{
				name:"Agriculture",
				row:5,
			}
			
		]	
	},
	{
		columnNumber: 1,
		era:"Ancient",
		techCost: 35, 
		buildingCost:60,
		techs:[
			{
				name:"Pottery",
				row:2,
			},
			{
				name:"Animal Husbandry",
				row:5
			},
			{
				name:"Archery",
				row:7
			},
			{
				name:"Mining",
				row:9
			}
			
		]	
	},
	{
		columnNumber: 2,
		era:"Ancient",
		techCost: 55, 
		buildingCost:75,
		wonderCost:185,
		techs:[
			{
				name:"Sailing",
				row:1,
				prerequisites:["Pottery"],
			},
			{
				name:"Calendar",
				row:2,
				prerequisites:["Pottery"]
			},
			{
				name:"Writing",
				row:3,
				prerequisites:["Pottery"]
			},
			{
				name:"Trapping",
				row:5,
				prerequisites:["Animal Husbandry"]
			},
			{
				name:"The Wheel",
				row:7,
				prerequisites:["Animal Husbandry", "Archery"]
			},
			{
				name:"Masonry",
				row:9,
				prerequisites:["Mining"]
			},
			{
				name:"Bronze Working",
				row:10,
				prerequisites:["Mining"]
			}			
		]	
	},
	{
		columnNumber: 3,
		era:"Classical",
		techCost: 105, 
		buildingCost:100,
		wonderCost:250,
		techs:[
			{
				name:"Optics",
				cost:85,
				row:1,
				prerequisites:["Sailing"],
				uniques:["Enables embarkation for land units"]
			},
			{
				name:"Horseback Riding",
				row:5,
				prerequisites:["Trapping","The Wheel"]
			},
			{
				name:"Mathematics",
				row:7,
				prerequisites:["The Wheel"]
			},
			{
				name:"Construction",
				row:9,
				prerequisites:["Masonry","The Wheel"]
			}
		]	
	},
	{
		columnNumber: 4,
		era:"Classical",
		techCost: 175, 
		buildingCost:120,
		wonderCost:300,
		techs:[
			{
				name:"Philosophy",
				row:3,
				prerequisites:["Writing","Calendar"]
			},
			{
				name:"Currency",
				row:7,
				prerequisites:["Mathematics"]
			},
			{
				name:"Engineering",
				row:8,
				prerequisites:["Mathematics","Construction"]
			},
			{
				name:"Iron Working",
				row:10,
				prerequisites:["Bronze Working"]
			}
		]	
	},
	{
		columnNumber: 5,
		era:"Medieval",
		techCost: 250,
		buildingCost:160,
		wonderCost:400,
		techs:[
			{
				name:"Theology",
				row:2,
				prerequisites:["Philosophy"]
			},
			{
				name:"Civil Service",
				row:5,
				prerequisites:["Currency","Horseback Riding","Philosophy"],
				uniques:["Enables Open Borders agreements"]
			},
			{
				name:"Guilds",
				row:7,
				prerequisites:["Currency"],
				uniques:["Enables conversion of city production to gold"]
			},
			{
				name:"Metal Casting",
				row:9,
				prerequisites:["Engineering","Iron Working"]
			}
		]
	},
	{
		columnNumber: 6,
		era:"Medieval",
		techCost: 440, 
		buildingCost:200,
		wonderCost:500,
		techs:[
			{
				name:"Compass",
				row:1,
				prerequisites:["Optics","Theology"],
			},
			{
				name:"Education",
				row:3,
				prerequisites:["Theology","Civil Service"],
				uniques:["Enables conversion of city production to science"]
			},
			{
				name:"Chivalry",
				row:6,
				prerequisites:["Civil Service","Guilds"]
			},
			{
				name:"Machinery",
				row:8,
				prerequisites:["Guilds","Engineering"],
				uniques:["Improves movement speed on roads"]
			},
			{
				name:"Physics",
				row:9,
				prerequisites:["Metal Casting"]
			},
			{
				name:"Steel",
				row:10,
				prerequisites:["Metal Casting"]
			}
		]	
	},
	{
		columnNumber: 7,
		era:"Renaissance",
		techCost: 650, 
		buildingCost:250,
		wonderCost:625,
		techs:[
			{
				name:"Astronomy",
				row:2,
				uniques:["Increases embarked movement +1","Enables embarked units to enter ocean tiles"],
				prerequisites:["Compass","Education"]
			},
			{
				name:"Acoustics",
				row:4,
				prerequisites:["Education"]
			},
			{
				name:"Banking",
				row:6,
				prerequisites:["Chivalry"]
			},
			{
				name:"Printing Press",
				row:8,
				prerequisites:["Machinery","Physics","Chivalry"]
			},
			{
				name:"Gunpowder",
				row:10,
				prerequisites:["Physics","Steel"]
			}
		]	
	},
	{
		columnNumber: 8,
		era:"Renaissance",
		techCost: 900, 
		buildingCost:300,
		wonderCost:750,
		techs:[
			{
				name:"Navigation",
				row:2,
				prerequisites:["Astronomy"]
			},
			{
				name:"Architecture",
				row:4,
				prerequisites:["Acoustics","Banking"]
			},
			{
				name:"Economics",
				row:6,
				prerequisites:["Banking","Printing Press"]
			},
			{
				name:"Metallurgy",
				row:9,
				prerequisites:["Printing Press","Gunpowder"]
			}
			{
				name:"Chemistry",
				row:10,
				prerequisites:["Gunpowder"]
			}
		]	
	},
	{
		columnNumber: 9,
		era:"Industrial",
		techCost: 1300,
		buildingCost:360,
		wonderCost:920,
		techs:[
			{
				name:"Archaeology",
				row:2,
				prerequisites:["Navigation"]
			},
			{
				name:"Scientific Theory",
				row:4,
				prerequisites:["Architecture","Economics"]
			},
			{
				name:"Industrialization",
				row:6,
				prerequisites:["Economics"]
			},
			{
				name:"Rifling",
				row:7,
				prerequisites:["Economics","Metallurgy"]
			},
			{
				name:"Military Science",
				row:9,
				prerequisites:["Metallurgy","Chemistry"]
			},
			{
				name:"Fertilizer",
				row:10,
				prerequisites:["Chemistry"]
			}
		]	
	},
	{
		columnNumber: 10,
		era:"Industrial",
		techCost: 1680,
		buildingCost:500,
		wonderCost:1060,
		techs:[
			{
				name:"Biology",
				row:2,
				prerequisites:["Archaeology","Scientific Theory"]
			},
			{
				name:"Electricity",
				row:3,
				prerequisites:["Scientific Theory"]
			},
			{
				name:"Steam Power",
				row:6,
				uniques:["Increases embarked movement +1"],
				prerequisites:["Industrialization","Scientific Theory","Rifling"]
			},
			{
				name:"Dynamite",
				row:9,
				prerequisites:["Fertilizer","Military Science"]
			}
		]	
	},
	{
		columnNumber: 11,
		era:"Modern",
		techCost: 3000,
		buildingCost:500,
		wonderCost:1250,
		techs:[
			{
				name:"Refrigeration",
				row:2,
				prerequisites:["Biology", "Electricity"], //to do: offshore platform should need this
			},
			{
				name:"Radio",
				row:3,
				prerequisites:["Electricity"]
			},
			{
				name:"Replaceable Parts",
				row:4,
				prerequisites:["Electricity","Steam Power"]
			},
			{
				name:"Flight",
				row:6,
				prerequisites:["Steam Power"]
			}
			{
				name:"Railroad",
				row:8,
				prerequisites:["Steam Power","Dynamite"]
			}
		]	
	},
	{
		columnNumber: 12,
		era:"Modern",
		techCost: 4100,
		buildingCost:500,
		wonderCost:1250,
		techs:[
			{
				name:"Plastics",
				row:3,
				prerequisites:["Radio","Replaceable Parts"]
			},
			{
				name:"Electronics",
				row:5,
				prerequisites:["Replaceable Parts", "Flight"],
			},
			{
				name:"Ballistics",
				row:6,
				prerequisites:["Flight"],
			},
			{
				name:"Combustion",
				row:8,
				prerequisites:["Railroad"]
			}
		]	
	},
	{
		columnNumber: 13,
		era:"Information",
		techCost: 5330,
		buildingCost:500,
		wonderCost:1250,
		techs:[
			{
				name:"Pharmaceuticals",
				row:2,
				prerequisites:["Plastics","Refrigeration"]
			},
			{
				name:"Atomic Theory",
				row:3,
				prerequisites:["Plastics","Electronics"]
			},
			{
				name:"Computers",
				row:5,
				prerequisites:["Electronics"],
				uniques:["+10% science and production in all cities"]
			},
			{
				name:"Combined Arms",
				row:7,
				prerequisites:["Ballistics","Combustion"]
			},
		]	
	},
	{
		columnNumber: 14,
		era:"Information",
		techCost: 6850,
		buildingCost:750,
		wonderCost:2000,
		techs:[
			{
				name:"Ecology",
				row:2,
				prerequisites:["Atomic Theory","Pharmaceuticals"]
			},
			{
				name:"Nuclear Fission",
				row:3,
				prerequisites:["Atomic Theory"]
			},
			{
				name:"Robotics",
				row:4,
				prerequisites:["Computers"]
			},
			{
				name:"Rocketry",
				row:6,
				prerequisites:["Combined Arms","Computers"]
			}
		]
	},
	{
		columnNumber: 15,
		era:"Future",
		techCost: 8182,
		buildingCost:750,
		wonderCost:1250,
		techs:[
			{
				name:"Nanotechnology",
				row:3,
				prerequisites:["Robotics","Ecology"]
			},
			{
				name:"Particle Physics",
				row:4,
				prerequisites:["Nuclear Fission"]
			},
			{
				name:"Satellites",
				row:5,
				prerequisites:["Rocketry","Robotics"]
			}
		]	
	},
	{
		columnNumber: 16,
		era:"Future",
		techCost: 9500,
		buildingCost:750,
		wonderCost:1250,
		techs:[
			{
				name:"Future Tech",
				row:4,
				prerequisites:["Nanotechnology","Particle Physics","Satellites"],
				uniques:["Who knows what the future holds?"]
			}
		]	
	}
]