Form 1040 is the main tax form used to file a U.S. individual income tax return. The 1040 shows income, deductions, credits, tax refunds or tax owed to the IRS.

Even the iconic Bluetooth logo pays homage to King Harald, blending two runes from the Younger Futhark alphabet: ᚼ (H) and ᛒ (B)—Harald Bluetooth's initials. READ MORE: Apple TV's chilling ...