Question: What was the introduction date of this line of Macintosh portable computers, introduced in conjunction with the MagSafe?

Context paragraphs:
Apple Workgroup Server: Apple Workgroup Server (AWS or sometimes WGS) and, later, Macintosh Server, are the names given to selected models of Macintosh computers which were sold by Apple Computer with additional server software and sometimes bigger hard drives. Apart from that, they were mostly identical to computers out of Apple's workstation range.  The "Workgroup Server" name was used on the models based on Centris, Quadra and early Power Macintosh families, while the servers based on the Power Macintosh G3 and Power Mac G4 were called "Macintosh Server G3" and "Macintosh Server G4".  The first model was the Workgroup Server 95, introduced in March 1993; the last of the series was discontinued in January 2003, after the introduction of the Xserve made them obsolete.

LanSlide Gaming PCs: LanSlide Gaming PCs, LLC was founded in 2005 by a group of gamers tired of moving large gaming desktops to LAN parties.  The company focuses on computers designed to be portable and sells a wide range of desktop gaming computers, all of which are built into cases with carrying handles for ease of transport.  Each computer comes with a special backpack to hold everything needed to run a desktop computer with the exception of the computer case.  In addition to portable computers, LanSlide Gaming PCs also sells a line of computers designed for 3D gaming.

MacBook Pro: The MacBook Pro (sometimes abbreviated MBP) is a line of Macintosh portable computers introduced in January 2006 by Apple Inc.  Replacing the PowerBook G4, the MacBook Pro was the second model to be announced during the Apple–Intel transition, after the iMac.  It is the high-end model of the MacBook family and is currently available in 13- and 15-inch screen sizes.  A 17-inch version was available between April 2006 and June 2012.

MagSafe: MagSafe is a series of proprietary magnetically attached power connectors, originally introduced by Apple Inc. on January 10, 2006, in conjunction with the MacBook Pro at the Macworld Expo in San Francisco, California.  The connector is held in place magnetically so that if it is tugged — for example, by someone tripping over the cord — it will pull out of the socket without damaging the connector or the computer power socket, and without pulling the computer off the surface on which it is located.

Apricot Portable: The Apricot Portable was a computing device manufactured by Apricot Computers, and was released to the public in November 1984.  It was Apricot Computers' first attempt at manufacturing a portable computer, which were gaining popularity at the time.  Compared to other portable computers of its time like the Compaq Portable and the Commodore SX-64, the Apricot Portable was the first computer to have an 80-column and 25-line LCD screen and an input/output speech recognition system.

Timeline of the Apple II family: This timeline of Apple II Family models lists all major types of Apple II computers produced by Apple Computer in order of introduction date.  The Apple I, Apple III and Apple Lisa are included, even though they are not classed as part of the Apple II series (or a Macintosh), because of their unique role in Apple's product lineup of the era.

PowerBook 500 series: The PowerBook 500 series (codenamed "Blackbird", which it shared with the older Macintosh IIfx) is a range of Apple Macintosh PowerBook portable computers first introduced by Apple Computer with the 540c model on May 16, 1994.  It was the first to have stereo speakers, a trackpad, and Ethernet networking built-in.

MacBook (Retina): The MacBook is a line of Macintosh portable computers introduced in March 2015 by Apple Inc.  The MacBook has a similar appearance to the MacBook Air, but is thinner and lighter, and is available in colours called space grey, silver, gold, and rose gold.  It offers a high-resolution Retina Display, a Force Touch trackpad, a redesigned keyboard, and only two ports: a headphone jack and a USB 3.1 Type-C port for charging, data transfer and video output.

Macintosh Portable: The Macintosh Portable is Apple Inc.'s first battery-powered portable Macintosh personal computer.  Released on September 20, 1989, it was received with excitement from most critics but consumer sales were quite low.  It featured a fast, sharp, and expensive black and white active matrix LCD screen in a hinged design that covered the keyboard when the machine was not in use.  The Portable was one of the early consumer laptops to employ an active matrix panel, and only the most expensive of the initial PowerBook line, the PowerBook 170, used one, due to the high cost.  The cursor pointing function was handled by a built-in trackball that could be removed and located on either side of the keyboard.  It used expensive SRAM in an effort to maximize battery life and to provide an "instant on" low power sleep mode.  The machine was designed to be high-performance, at the cost of price and weight.

Chuck Colby: Chuck Colby is an electronics engineer and chief-inventor, founder and president of Colby Systems Corporation, a company that created the first DVR-based video surveillance systems but is also very notable as a pioneer in portable computing, being the first to market both DOS and Macintosh portable computers, as well as a remarkable number of other technological firsts.

Supporting paragraphs: MagSafe MacBook Pro
Answer: January 2006