Heroku is the following: A Web Application Deployment Model: Heroku is designed to help developers build web apps and get them out into the world, without having to worry about managing servers, scaling operations, or juggling the deployment process.
The Little Ice Age was a period of cooling occurring after a warmer North Atlantic era known as the Medieval Warm Period or Medieval Climate Optimum.... ) and retreating during climate warming on moderate time scales.
The little ice age contributed to the decline of urban areas in this period by the decline in agriculture and trade. Due to the colder temperatures, crops failed. Not having enough food to eat, famine took the lives of many people, causing a decline in population.