Horse Armor is an item that appeared in the 1.6 update. Horse armor is used to protect the player's horse from taking damage as they would do for themselves. Horse armor was previously crafted from iron, diamond, or gold, along with any color of wool. Horse armor can currently only be found in generated chests particularly those of dungeons. Horse armour can also be obtained by trading with a villager, however, horse armor can't be crafted.
An Archipelago is a landform that is a group of many islands. Some of the most famous. archipelagos of the world are many of the islands around Japan, Hawaii and the British Islands. Most people think this type of landform is what you see on movies but that is not necessarily so. Canada has many archipelagos that are barren because of the cold.
For example, the more than 50,000 islands in the Archipelago Sea in Finland formed this way. The process is still ongoing and new islands continue to pop up even to this day. Many of the islands in the Archipelago Sea are tiny, taking up less than an acre. The Malay Archipelago, which sits between the Pacific and Indian Oceans off the coasts of Indonesia and Malaysia, is the world's largest archipelago. Its more than 25,000 islands used to be part of mainland Asia and appeared after glaciers disappeared after the last ice age.