What Is a Roth IRA? A Roth IRA is a special retirement account that you fund with post-tax income (you can't deduct your contributions on your income taxes). Once you have done this, all future withdrawals that follow Roth IRA regulations are tax free
Organic catalyst is the answer
Building techniques improved, iron became more common, and hydraulics were used to dig riverbeds deeper. So less floods happened that destroyed farms and endangered lives.
Jamestown offered anchorage and a good defensive position. Warm climate and fertile soil allowed large plantations to prosper. Plymouth provided good anchorage and an excellent harbor. Cold climate and thin, rocky soil limited farm size