There are premium subsidies available in the exchange, but you're not eligible for them if the plan offered by your employer is considered affordable and provides minimum value (this is true for your family members as well, if they have access to your employer-sponsored plan, even if the employer-sponsored plan is only affordable for the employee's portion of the coverage; this is known as the family glitch). Most employer-sponsored plans are affordable and do provide minimum value. So if you're shopping for an individual market plan instead, chances are high that you'll have to pay full price for it, without any subsidies.
Baylor Hospital, in Dallas, Texas, introduced the first pre-paid hospital insurance in 1929, offering to provide medical services to a group of Texas teachers for a premium of 50 cents a month. The plan worked on the principle of paying for the costs of care for a small group of sick individuals by spreading them out over a much larger pool. The concept caught on, and by the late 1930s, nearly 3 million Americans were enrolled in “Blue Cross” hospital plans.