Fasting pre-Vatican II

Church law for Roman Catholics regarding fast and abstinence was changed by Pope Paul VI in 1966. But prior to that, the Pio-Benedictine Code of law had:

Canon 1251

§ 1. The law of fast prescribes that there be only one meal a day; but it does not forbid that a little bit [of food] be taken in the morning and in the evening, observing, nevertheless, the approved custom of places concerning the quantity and the quality of the food.
§ 2. It is not forbidden to mix meat and fish in the same meal; or to exchange the evening meal with lunch.

Canon 1252 (1983 CIC 1251)

§ 1. The law of abstinence only must be observed every [Friday].
§ 2. The law of abstinence together with fast must be observed every Ash [Wednesday], every [Friday and Saturday] of Lent, each of the [Ember] Days, and the vigils of the Pentecost, the Assumption of the God-bearer into heaven, All the (solemnities of) Saints, and the Nativity of the Lord.
§ 3. The law of fast only is to be observed on all the other days of Lent.
§ 4. On [Sundays] or feasts of precept, the law of abstinence or of abstinence and fast or a fast only ceases, except during Lent, nor is the vigil anticipated; likewise it ceases on Holy [Saturday] afternoon.

Fasting six days a week during lent? I had forgotten that fasting was so strict so recently.