Hit Points: 45
Armor/Pierce Armor: 0/0
Range: 0(1 for some civs)
Cost: 35(45) food, 25 wood
Special: +1 vs Buildings, +15 vs Cavalry and Ribalds, +7 vs Lancers and Ships
Upgrades to: Pikeman
Upgrade Century: 13th
Upgrade Cost: 215 Food, 90 Florins
Attack: Forging, Iron Casting, Blast Furnace, Ragazzini (Genoese Unique Technology)
Attack, Hit Points: Drill Pikemen, Close Order Drill
Armour: Scale Armour. Mail Armour, Plate Armour
Civs and Spearmen
Bavaria: Researching Romzug provides +20 HP.
Brittany: +1 range.
Burgundy: -10 HP.
Friesland: HP increases as player advances through centuries.
Guelders: Additional HP, but slower and attacks slower. Costs 25% less.
Helvetia: +1 range.
Liège: +1 range. Researching Tribunal of the XXII provides +2 pierce armour.
Milan: Train 20% faster. Researching Scuola Sforzesca provides +1 attack, +1/+2 armour, but reduces speed. Researching Lombard League provides +1 range.
Savoy: Take up 1/2 population slot. Cheaper but with fewer HP.
Saxony: Attack speed increases as player advances through centuries.
Scotland: +1 range. +1 attack. Cheaper but with longer training time. Moves 15% faster. +2 attack vs. cavalry (Team Bonus).
Wales: +10 HP. Faster but with increased cost.
Other civs: Normal.
Your basic spearman is available immediately, which is a good thing, since cavalry are also available in the 12th Century. Spear troops, thus, can be a nice defense against early Pathfinder raids. Because they don't cost florins (they are known as a trash unit, being easily disposable), spearmen can be a key part of a 12th century army. However, they are notoriously vulnerable to ranged units - many archers (and skirmishers, too) have large bonuses against them. Early available Town Militia can also be seen as an early threat.
Ranged Spearmen (long pikes) have the advantage to form close-order formations of several ranks. This makes it possible to deal more damage to any melee unit attacking the formation. Late-game techs such as Close Order Drill and Drill Pikemen boost their overall stats, helpful against heavier troops. They're also fairly fast, making them decent scouts - especially with the Tracking technology researched - if you can keep them away from archers.