Specialists are citizens who are trained and skilled at a specific profession. Tawhid constitutes the foremost article of the Muslim profession of faith. Nightingale's lasting contribution has been her role in founding the modern nursing profession. This had a negative impact on many aspects of the software engineering profession. Madhur decided to pursue acting as a profession. The Romans recognized land surveying as a profession. Often they had to add to the sciences relevant to their profession. Tawhid constitutes the foremost article of the Muslim profession. Hostility towards the legal profession is a widespread phenomenon. Activism is not an activity always performed by those who profess activism as a profession. This was the beginning of regulation of the medical profession in the UK. Nightingale spent the rest of her life promoting and organising the nursing profession. These smaller unions tend to specialize in one profession or economic sector. They are similar to law firm networks found in the legal profession. Societies and academies were also the backbone of the maturation of the scientific profession.