Texas’ Gulf Coastal Plains are the western extension of the coastal plain extending from the Atlantic Ocean to beyond the Rio Grande. Its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into East Texas. In the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.
The interior limit of the Gulf Coastal Plains in Texas is the line of the Balcones Fault and Escarpment. This geologic fault or shearing of underground strata extends eastward from a point on the Rio Grande near Del Rio. It extends to the northwestern part of Bexar County, where it turns northeastward and extends through Comal, Hays, and Travis counties, intersecting the Colorado River immediately north of Austin. The fault line is a single, definite geologic feature, accompanied by a line of southward- and eastward-facing hills.
Defined natural to life, liberty, and property.
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There were a number of reasons that the Roman Empire fell. By the 5th century A.D., the Romans experienced repeated invasions by Germanic tribes who were constantly encroaching on its borders. Internally, the empire suffered from overspending and unfair taxation. Their was also an increasing gulf between the rich and poor. The Romans depended on slaves and the supply significantly declined. These problems were compounded by the rise of the Eastern Roman Empire in Byzantium. At first, it allowed the empire to be administered more efficiently but the two eventually drifted apart due to differences in religious expression and ideology. The two sections also failed to work together to stop outside encroachment. Governmental corruption and instability caused a number of problems as well. The rise of Christianity and the weakening of the military structure has also been viewed as one of the reasons why the Roman Empire fell.
The clause is really a state's rights clause. A state may not pass a law that makes something illegal that was legal before the law was passed. In other words if a state suddenly passed a law that said it is no longer legal to park your car in front of any government building, but it was legal to do so yesterday, the police cannot come to your door and issue a ticket for parking in front of a government building because you did it yesterday.
The constitution actually uses the phrase ex post facto law in Article 1 Section 10 Clause 1.