Question: In which city does this annual convention (first occurred in June 1993) that Iftach Ian Amit founded take place ?

Context paragraphs:
The Odisha Society of the Americas: The The Odisha Society of the Americas, or OSA, is an organization whose stated goals are to promote the culture of the Indian state of Orissa in the United States and Canada, and to facilitate the exchange of information between Orissa and North America.  Founded in 1969, OSA is registered as a 501(c)(3) charitable organization in the United States.  The main event of the organization is an annual convention which aims to bring members of the Odia diaspora together to celebrate their ethnic culture.  It held an annual get-together called convention, where people of Oriya origin from different parts of USA and Canada mingled and shared experiences of ethnic living.

Texas State Florists Association: The Texas State Florists' Association (TSFA) was founded in 1914 and is headquartered in Austin, Texas.  Since its inception, the TSFA has grown into a professional trade association that covers many branches of the floral industry.  Its membership base includes a diverse assortment of people in the floral industry, and it is involved in professional services and marketing in support of floral interests, state legislation, and the provision of educational opportunities.  It represents the Texas floral industry, and has members in ten additional states.  The organization hosts an annual convention, the first of which occurred in 1914.  The TSFA sponsors the Texas Certified Florists Program, and publishes a monthly magazine named "The Bloomin' Texan".

National Black Law Students Association: The National Black Law Students Association (NBLSA), founded in 1968, is a nationwide organization formed to articulate and promote the needs and goals of black law students and effectuates change in the legal community.  As the largest student run organization in the country with over 6,000 members, NBLSA includes chapters or affiliates in six different countries including The Bahamas, Nigeria, and South Africa.  NBLSA encourages the development of talented, social conscious lawyers of tomorrow.  NBLSA help start the Black Law Students Association of Canada (BLSAC), The National Latino/Latina Student Association (NLLSA), National Association of Law Students with Disabilities (NALSD), and The National Asian Pacific American Law Student Association (NAPALSA).  The headquarters of NBLSA is located in Washington, D.C..  Organized into six regions (Northeast, Mid-Atlantic, Southern, Mid-West, Rocky Mountain and Western Region) the organization has over 200 chapters and is present in all but a few of the nation's accredited law schools, as well as unaccredited law schools.  Each year, the organization holds an annual convention to engage in legal activism and while preparing new generations of black lawyers to "effectuate change."  Additionally, the Frederick Douglass Moot Court and Thurgood Marshall Mock Trial Competitions are held during its Annual Convention.

Otronicon: Otronicon (Orlando Electronic Interactive Convention) is an electronic gaming and simulation conference.  The first annual convention was held at the Orlando Science Center in Orlando, Florida, United States in January 2006.  The fourth annual event was held January 16-20th, 2009 at the Orlando Science Center.  Events included tournaments, workshops, retro gaming including a small version of the Videotopia videogame history museum exhibit, gaming movies, and simulations.  The event in 2009 was sponsored by Full Sail University, a programming and gaming-development university located outside of Orlando, FL.  Otronicon ran for ten days in its inaugural show.  It was also held at the Orlando Science Center during the 2007 and 2008 convention.  It contained such game systems as the following: Xbox 360, PlayStation 2, Guitar Hero, and many Flight Simulators such as Helicopters, Cars, and the Original Microsoft Flight Simulator.  The 2013 convention took place on January 18–21, 2013.

DEF CON: DEF CON (also written as DEFCON, Defcon, or DC) is one of the world's largest hacker conventions, held annually in Las Vegas, Nevada, with the first DEF CON taking place in June 1993.  Many of the attendees at DEF CON include computer security professionals, journalists, lawyers, federal government employees, security researchers, students, and hackers with a general interest in software, computer architecture, phone phreaking, hardware modification, and anything else that can be "hacked."  The event consists of several tracks of speakers about computer- and hacking-related subjects, as well as social events Wargames and contests in everything from creating the longest Wi-Fi connection (aircrack-ng) and hacking computer systems to who can most effectively cool a beer in the Nevada heat.

Iftach Ian Amit: Iftach Ian Amit (Hebrew: יפתח איאן עמית) is an Israeli Hacker/computer security researcher and practitioner.  He is one of the co-founders of the Tel Aviv DEF CON Group DC9723, the Penetration Testing Execution Standard, and presented at hacker conventions such as DEF CON, Black Hat, BlueHat, RSA Conference.  He has been named SC Magazine's top experts and featured at Narratively's cover piece on Attack of the Superhackers and is frequently quoted and interviewed

Playlist Live: Playlist Live is an annual convention held in Orlando, Florida and Washington D.C..  The convention is held primarily for YouTube content creators.  The convention has been held annually since 2011.  The convention has also been held in the tri-state area as well as Orlando.  The last event took place in Washington, D.C. on September 1-3, 2017.

Ghana Biomedical Convention: The Ghana Biomedical Convention is multidisciplinary professional body that was established in 2007.  The convention seeks to bring biomedical professionals from Ghana and the world over to share current researches in the field.  The convention holds an annual convention called the Ghana Biomed.The first Biomed convention was held at the University of Ghana, Legon in 2008.

Midwest FurFest: Midwest FurFest (abbreviated MFF) is a furry convention, which takes place in Rosemont, Illinois each December.  MFF is an Illinois Educational Not-For-Profit Corporation that exists primarily for the purpose of holding an annual convention to facilitate education in anthropomorphic literature and art.  A secondary purpose of the corporation is to facilitate the donation of funds to non-profit institutions that the board decides are worthy and which promote the well-being of humans and/or animals.  The convention was first held in 2000 and has grown to draw 5,606 attendees in 2015.

Small Press and Alternative Comics Expo: The Small Press and Alternative Comics Expo, or SPACE or S.P.A.C.E., is an annual convention in Columbus, Ohio, United States, for alternative comics, minicomics, and webcomics. Bob Corby founded the convention as a gathering place for "the comics and the creators with no distractions."  The show is sponsored by Corby's Back Porch Comics, a Columbus small press comics publisher.

Supporting paragraphs: Iftach Ian Amit DEF CON
Answer: Las Vegas, Nevada