Subject.

1. Science?

1.1. Material?

1.2. Chemistry?

2. Science like

2.1. Properteis of science

2.1.1. Experiment

2.1.2. Creative manipulation of avalable information

2.1.2.1. Subject (history of...)

2.1.2.1.1. American Civil War

2.1.2.1.2. Renneisance

2.1.2.1.3. Science?

2.1.3. Original idea