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  2. List of U.S. states by date of admission to the Union - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._states_by...

    The following table is a list of all 50 states and their respective dates of statehood. The first 13 became states in July 1776 upon agreeing to the United States Declaration of Independence, and each joined the first Union of states between 1777 and 1781, upon ratifying the Articles of Confederation, its first constitution. [6]

  3. History of Alabama - Wikipedia

    en.wikipedia.org/wiki/History_of_Alabama

    The first Europeans to make contact with Alabama were the Spanish, with the first permanent European settlement being Mobile, established by the French in 1702. After being a part of the Mississippi Territory (1798–1817) and then the Alabama Territory (1817–1819), Alabama would become a U.S. state on December 14, 1819.

  4. Tin mining - Wikipedia

    en.wikipedia.org/wiki/Tin_mining

    The earliest bronze objects had tin or arsenic content of less than 2% and are therefore believed to be the result of unintentional alloying due to trace metal content in the copper ore [2] It was soon discovered that the addition of tin or arsenic to copper increased its hardness and made casting much easier, which revolutionized metal working ...

  5. Tin sources and trade during antiquity - Wikipedia

    en.wikipedia.org/wiki/Tin_sources_and_trade...

    It has been claimed that tin was first mined in Europe around 2500 BC in the Erzgebirge, and knowledge of tin bronze and tin extraction techniques spread from there to Brittany and Cornwall around 2000 BC and from northwestern Europe to northwestern Spain and Portugal around the same time. [19]

  6. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...

  7. Tin - Wikipedia

    en.wikipedia.org/wiki/Tin

    The first tin alloy used on a large scale was bronze, made of 1 ⁄ 8 tin and 7 ⁄ 8 copper (12.5% and 87.5% respectively), from as early as 3000 BC. After 600 BC, pure metallic tin was produced. After 600 BC, pure metallic tin was produced.

  8. In a secret Alabama cave, 1,000-year-old carvings thought to ...

    www.aol.com/news/america-largest-cave-figures...

    Roughly 1,000 years ago, artists working by the light of burning reeds carved figures into the ceiling of a cave in what’s now Alabama, crouching in the narrow space below.

  9. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    ^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...