Nov 16 (Reuters) – Retailers are preparing for what they hope will be yet another record-setting global shopping spree on Black Friday, the fourth Friday of November, which this year is Nov. 24. Known for crowds lining up at big-box stores to pounce on doorbuster discounts during the early hours after American Thanksgiving, Black Friday normally marks the unofficial start of the Christmas shopping season. Retailers in the U.S., Europe and elsewhere will be trying to cash in on the hoopla. Here is what to expect from Black Friday 2023. WHY IS IT CALLED 'BLACK' FRIDAY? Starting around the 1960s…