Historical clue formulations

• Popular flip phone of the mid-2000s — 2021-11-10
• Motorola phone brand — 2015-04-22
• Motorola smartphone — 2014-11-16
• Motorola phone brand — 2014-01-29
• Motorola phone — 2013-10-20
• Motorola cellphone — 2013-06-18
• Motorola cell phone brand — 2011-12-14
• Motorola phone line — 2011-10-23