In which year did the apple iphone first came into existence?

In which year did the apple iphone first came into existence?

2007

The first model was released on June 29, 2007

The first concept for an iPhone type device came about in 2000 when Apple worker John Casey sent some concept art around via internal email, he called it the Telipod - a telephone and iPod combination. However, this idea eventually evolved into the iPhone we know today.
It was Apple co-founder, Steve Jobs who directed Apple's engineers to develop a touch screen, mobile phone. Jobs at first was considering an Apple tablet computer, that desire eventually manifested in the iPad, and Apple had already produced a palm device with a touch screen, the Newton MessagePad.
Apple Phones
Apple's first smartphone was the ROKR E1, released on September 7, 2005. However, the ROKR was an Apple and Motorola collaboration and Apple was not happy with Motorola's contributions. Within a year, Apple discontinued support for the ROKR. On January 9, 2007, Steve Jobs announced the new iPhone at the Macworld convention. On June 29, 2007, Apple began selling the new iPhone.

Apple's head of design, Jonathan I've is heavily credited with the aesthetic design and look of the iPhone. The iPhone was the first smart phone that had no hard keypad for dialing, it was entirely a touchscreen device, and the iPhone's touchscreen technology was groundbreaking with multi-touch controls, more than select, you could scroll and zoom as well.
The iPhone also introduced the accelerometer, a motion sensor that allowed you to turn the phone sideways and rotate the display. While it was the first device to have "apps" or software add-ons. It was the first smart phone to manage the apps market successfully.